./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.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_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/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_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/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_868881d1-6f14-4b57-b8ff-f96e277311cc/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 e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:49,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:49,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:42:49,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:49,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:49,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:49,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:49,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:49,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:49,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:49,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:49,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:49,915 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:49,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:49,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:49,918 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:49,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:49,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:49,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:49,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:49,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:49,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:49,921 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:49,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:49,922 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:49,923 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:49,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:49,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:49,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:49,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:49,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:49,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:49,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:49,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:49,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:49,927 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:49,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:49,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:49,928 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:49,928 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_868881d1-6f14-4b57-b8ff-f96e277311cc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 [2023-11-19 07:42:50,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:50,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:50,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:50,217 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:50,218 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:50,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2023-11-19 07:42:53,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:53,619 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:53,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2023-11-19 07:42:53,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/data/53aba753e/9b93a22f8d18431fa7340be77998e18c/FLAGb3f9fbffb [2023-11-19 07:42:53,660 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/data/53aba753e/9b93a22f8d18431fa7340be77998e18c [2023-11-19 07:42:53,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:53,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:53,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:53,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:53,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:53,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:53" (1/1) ... [2023-11-19 07:42:53,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49440cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:53, skipping insertion in model container [2023-11-19 07:42:53,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:53" (1/1) ... [2023-11-19 07:42:53,753 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:54,131 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_868881d1-6f14-4b57-b8ff-f96e277311cc/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2023-11-19 07:42:54,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:54,153 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:54,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-19 07:42:54,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2023-11-19 07:42:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [521] [2023-11-19 07:42:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [589] [2023-11-19 07:42:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [786] [2023-11-19 07:42:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [881] [2023-11-19 07:42:54,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [931] [2023-11-19 07:42:54,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [966] [2023-11-19 07:42:54,234 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_868881d1-6f14-4b57-b8ff-f96e277311cc/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2023-11-19 07:42:54,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:54,261 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:54,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54 WrapperNode [2023-11-19 07:42:54,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:54,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:54,263 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:54,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:54,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,337 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 205 [2023-11-19 07:42:54,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:54,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:54,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:54,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:54,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:54,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:54,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:54,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:54,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (1/1) ... [2023-11-19 07:42:54,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:54,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:54,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:54,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:42:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:42:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:42:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:42:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:42:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:42:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:42:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:42:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-19 07:42:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-19 07:42:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:42:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:42:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:42:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:54,571 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:54,574 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:54,876 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:42:54,889 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:42:54,889 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:42:54,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:54 BoogieIcfgContainer [2023-11-19 07:42:54,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:42:54,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:42:54,896 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:42:54,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:42:54,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:53" (1/3) ... [2023-11-19 07:42:54,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656910ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:54, skipping insertion in model container [2023-11-19 07:42:54,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54" (2/3) ... [2023-11-19 07:42:54,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656910ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:54, skipping insertion in model container [2023-11-19 07:42:54,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:54" (3/3) ... [2023-11-19 07:42:54,903 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2023-11-19 07:42:54,923 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:42:54,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:42:54,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:54,995 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;@6f1648f6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:54,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:42:55,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 76 states have internal predecessors, (96), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:42:55,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 07:42:55,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:55,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:55,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:55,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:55,021 INFO L85 PathProgramCache]: Analyzing trace with hash 991645006, now seen corresponding path program 1 times [2023-11-19 07:42:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:55,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094379218] [2023-11-19 07:42:55,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:55,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:42:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:55,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:42:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:42:55,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:55,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094379218] [2023-11-19 07:42:55,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094379218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:55,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:55,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:55,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798146993] [2023-11-19 07:42:55,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:55,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:42:55,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:55,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:42:55,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:42:55,306 INFO L87 Difference]: Start difference. First operand has 88 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 76 states have internal predecessors, (96), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:42:55,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:55,368 INFO L93 Difference]: Finished difference Result 167 states and 226 transitions. [2023-11-19 07:42:55,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:42:55,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-19 07:42:55,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:55,381 INFO L225 Difference]: With dead ends: 167 [2023-11-19 07:42:55,381 INFO L226 Difference]: Without dead ends: 79 [2023-11-19 07:42:55,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:42:55,391 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:55,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:55,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-19 07:42:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-19 07:42:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 68 states have internal predecessors, (82), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:42:55,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 101 transitions. [2023-11-19 07:42:55,453 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 101 transitions. Word has length 32 [2023-11-19 07:42:55,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:55,454 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 101 transitions. [2023-11-19 07:42:55,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:42:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 101 transitions. [2023-11-19 07:42:55,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 07:42:55,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:55,461 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:55,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:42:55,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:55,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:55,462 INFO L85 PathProgramCache]: Analyzing trace with hash -43910683, now seen corresponding path program 1 times [2023-11-19 07:42:55,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:55,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696234336] [2023-11-19 07:42:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:55,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:42:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:42:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:42:55,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:55,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696234336] [2023-11-19 07:42:55,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696234336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:55,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:55,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:55,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460600439] [2023-11-19 07:42:55,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:55,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:55,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:55,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:55,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:55,645 INFO L87 Difference]: Start difference. First operand 79 states and 101 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:42:55,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:55,662 INFO L93 Difference]: Finished difference Result 119 states and 152 transitions. [2023-11-19 07:42:55,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:55,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-11-19 07:42:55,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:55,664 INFO L225 Difference]: With dead ends: 119 [2023-11-19 07:42:55,664 INFO L226 Difference]: Without dead ends: 70 [2023-11-19 07:42:55,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:55,667 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 17 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:55,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 155 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-19 07:42:55,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-19 07:42:55,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 62 states have internal predecessors, (75), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:42:55,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2023-11-19 07:42:55,686 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 33 [2023-11-19 07:42:55,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:55,686 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2023-11-19 07:42:55,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:42:55,687 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2023-11-19 07:42:55,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 07:42:55,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:55,692 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:55,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:42:55,694 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:55,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:55,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1721110732, now seen corresponding path program 1 times [2023-11-19 07:42:55,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:55,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422760591] [2023-11-19 07:42:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:55,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:55,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-19 07:42:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:42:56,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:56,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422760591] [2023-11-19 07:42:56,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422760591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:56,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:56,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:42:56,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415848850] [2023-11-19 07:42:56,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:56,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:42:56,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:56,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:42:56,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:42:56,009 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:42:56,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:56,162 INFO L93 Difference]: Finished difference Result 237 states and 310 transitions. [2023-11-19 07:42:56,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:42:56,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-11-19 07:42:56,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:56,166 INFO L225 Difference]: With dead ends: 237 [2023-11-19 07:42:56,166 INFO L226 Difference]: Without dead ends: 175 [2023-11-19 07:42:56,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:56,169 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 182 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:56,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 460 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:42:56,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-19 07:42:56,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2023-11-19 07:42:56,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 131 states have (on average 1.3435114503816794) internal successors, (176), 142 states have internal predecessors, (176), 19 states have call successors, (19), 14 states have call predecessors, (19), 14 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-19 07:42:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 215 transitions. [2023-11-19 07:42:56,213 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 215 transitions. Word has length 37 [2023-11-19 07:42:56,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:56,214 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 215 transitions. [2023-11-19 07:42:56,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:42:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 215 transitions. [2023-11-19 07:42:56,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 07:42:56,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:56,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:56,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:42:56,225 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:56,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:56,225 INFO L85 PathProgramCache]: Analyzing trace with hash 845444465, now seen corresponding path program 1 times [2023-11-19 07:42:56,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:56,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605449168] [2023-11-19 07:42:56,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:56,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:42:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:42:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:42:56,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605449168] [2023-11-19 07:42:56,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605449168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:56,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:56,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:56,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424706731] [2023-11-19 07:42:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:56,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:56,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:56,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:56,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:56,407 INFO L87 Difference]: Start difference. First operand 165 states and 215 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:42:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:56,448 INFO L93 Difference]: Finished difference Result 407 states and 539 transitions. [2023-11-19 07:42:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:56,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2023-11-19 07:42:56,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:56,451 INFO L225 Difference]: With dead ends: 407 [2023-11-19 07:42:56,452 INFO L226 Difference]: Without dead ends: 250 [2023-11-19 07:42:56,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:56,455 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 57 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:56,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 147 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:56,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-19 07:42:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2023-11-19 07:42:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 194 states have (on average 1.3144329896907216) internal successors, (255), 209 states have internal predecessors, (255), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2023-11-19 07:42:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 319 transitions. [2023-11-19 07:42:56,493 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 319 transitions. Word has length 42 [2023-11-19 07:42:56,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:56,493 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 319 transitions. [2023-11-19 07:42:56,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:42:56,494 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 319 transitions. [2023-11-19 07:42:56,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 07:42:56,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:56,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:56,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:42:56,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:56,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:56,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1493412905, now seen corresponding path program 1 times [2023-11-19 07:42:56,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:56,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822804883] [2023-11-19 07:42:56,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:56,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:42:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 07:42:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:42:56,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822804883] [2023-11-19 07:42:56,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822804883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:56,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:56,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:42:56,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501597859] [2023-11-19 07:42:56,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:56,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:42:56,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:56,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:42:56,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:42:56,631 INFO L87 Difference]: Start difference. First operand 248 states and 319 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:42:56,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:56,774 INFO L93 Difference]: Finished difference Result 490 states and 635 transitions. [2023-11-19 07:42:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:42:56,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2023-11-19 07:42:56,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:56,781 INFO L225 Difference]: With dead ends: 490 [2023-11-19 07:42:56,781 INFO L226 Difference]: Without dead ends: 250 [2023-11-19 07:42:56,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:42:56,794 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 45 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:56,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 373 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:42:56,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-19 07:42:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 245. [2023-11-19 07:42:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 191 states have (on average 1.287958115183246) internal successors, (246), 206 states have internal predecessors, (246), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2023-11-19 07:42:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 310 transitions. [2023-11-19 07:42:56,845 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 310 transitions. Word has length 41 [2023-11-19 07:42:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:56,846 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 310 transitions. [2023-11-19 07:42:56,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:42:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 310 transitions. [2023-11-19 07:42:56,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:42:56,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:56,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:56,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:42:56,849 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:56,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:56,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1271259535, now seen corresponding path program 1 times [2023-11-19 07:42:56,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:56,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792357515] [2023-11-19 07:42:56,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:56,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:42:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:42:56,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:56,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792357515] [2023-11-19 07:42:56,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792357515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:56,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:56,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:42:56,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508400942] [2023-11-19 07:42:56,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:56,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:42:56,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:56,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:42:56,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:42:56,938 INFO L87 Difference]: Start difference. First operand 245 states and 310 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:42:56,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:56,986 INFO L93 Difference]: Finished difference Result 512 states and 663 transitions. [2023-11-19 07:42:56,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:42:56,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2023-11-19 07:42:56,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:56,990 INFO L225 Difference]: With dead ends: 512 [2023-11-19 07:42:56,990 INFO L226 Difference]: Without dead ends: 275 [2023-11-19 07:42:56,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:42:56,992 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 13 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:56,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 376 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:56,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-19 07:42:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 251. [2023-11-19 07:42:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 197 states have (on average 1.2791878172588833) internal successors, (252), 212 states have internal predecessors, (252), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2023-11-19 07:42:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 316 transitions. [2023-11-19 07:42:57,021 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 316 transitions. Word has length 50 [2023-11-19 07:42:57,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:57,021 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 316 transitions. [2023-11-19 07:42:57,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:42:57,022 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 316 transitions. [2023-11-19 07:42:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:42:57,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:57,024 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:57,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:42:57,024 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:57,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:57,025 INFO L85 PathProgramCache]: Analyzing trace with hash -848557709, now seen corresponding path program 1 times [2023-11-19 07:42:57,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:57,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135313658] [2023-11-19 07:42:57,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:57,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:42:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:42:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:57,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135313658] [2023-11-19 07:42:57,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135313658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:57,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:57,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:42:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879270751] [2023-11-19 07:42:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:57,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:42:57,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:57,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:42:57,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:42:57,124 INFO L87 Difference]: Start difference. First operand 251 states and 316 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:42:57,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:57,185 INFO L93 Difference]: Finished difference Result 526 states and 677 transitions. [2023-11-19 07:42:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:42:57,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2023-11-19 07:42:57,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:57,189 INFO L225 Difference]: With dead ends: 526 [2023-11-19 07:42:57,189 INFO L226 Difference]: Without dead ends: 283 [2023-11-19 07:42:57,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:57,191 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 60 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:57,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 416 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-19 07:42:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 255. [2023-11-19 07:42:57,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 201 states have (on average 1.2736318407960199) internal successors, (256), 216 states have internal predecessors, (256), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2023-11-19 07:42:57,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 320 transitions. [2023-11-19 07:42:57,217 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 320 transitions. Word has length 50 [2023-11-19 07:42:57,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:57,217 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 320 transitions. [2023-11-19 07:42:57,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:42:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 320 transitions. [2023-11-19 07:42:57,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:42:57,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:57,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:57,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:42:57,220 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:57,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:57,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1640971253, now seen corresponding path program 1 times [2023-11-19 07:42:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:57,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456383777] [2023-11-19 07:42:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:57,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:42:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:42:57,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:57,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456383777] [2023-11-19 07:42:57,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456383777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:57,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:57,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:57,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612824617] [2023-11-19 07:42:57,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:57,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:57,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:57,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:57,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:57,342 INFO L87 Difference]: Start difference. First operand 255 states and 320 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:42:57,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:57,390 INFO L93 Difference]: Finished difference Result 629 states and 799 transitions. [2023-11-19 07:42:57,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:57,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2023-11-19 07:42:57,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:57,394 INFO L225 Difference]: With dead ends: 629 [2023-11-19 07:42:57,394 INFO L226 Difference]: Without dead ends: 382 [2023-11-19 07:42:57,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:57,397 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 39 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:57,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 160 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:57,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-11-19 07:42:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2023-11-19 07:42:57,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 300 states have (on average 1.2466666666666666) internal successors, (374), 318 states have internal predecessors, (374), 46 states have call successors, (46), 38 states have call predecessors, (46), 35 states have return successors, (53), 43 states have call predecessors, (53), 46 states have call successors, (53) [2023-11-19 07:42:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 473 transitions. [2023-11-19 07:42:57,440 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 473 transitions. Word has length 50 [2023-11-19 07:42:57,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:57,440 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 473 transitions. [2023-11-19 07:42:57,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:42:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 473 transitions. [2023-11-19 07:42:57,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:42:57,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:57,443 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:57,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:42:57,444 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:57,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:57,444 INFO L85 PathProgramCache]: Analyzing trace with hash 832166863, now seen corresponding path program 1 times [2023-11-19 07:42:57,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:57,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739787510] [2023-11-19 07:42:57,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:57,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:42:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:42:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-19 07:42:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:42:57,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:57,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739787510] [2023-11-19 07:42:57,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739787510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:57,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:57,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:42:57,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536967690] [2023-11-19 07:42:57,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:57,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:42:57,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:57,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:42:57,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:57,663 INFO L87 Difference]: Start difference. First operand 382 states and 473 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:42:58,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:58,050 INFO L93 Difference]: Finished difference Result 1217 states and 1552 transitions. [2023-11-19 07:42:58,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:42:58,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2023-11-19 07:42:58,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:58,056 INFO L225 Difference]: With dead ends: 1217 [2023-11-19 07:42:58,056 INFO L226 Difference]: Without dead ends: 970 [2023-11-19 07:42:58,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:42:58,059 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 259 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:58,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 560 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:42:58,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2023-11-19 07:42:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 931. [2023-11-19 07:42:58,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 737 states have (on average 1.2293080054274084) internal successors, (906), 787 states have internal predecessors, (906), 106 states have call successors, (106), 81 states have call predecessors, (106), 87 states have return successors, (132), 101 states have call predecessors, (132), 106 states have call successors, (132) [2023-11-19 07:42:58,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1144 transitions. [2023-11-19 07:42:58,142 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1144 transitions. Word has length 54 [2023-11-19 07:42:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:58,142 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1144 transitions. [2023-11-19 07:42:58,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:42:58,143 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1144 transitions. [2023-11-19 07:42:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 07:42:58,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:58,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:58,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:42:58,146 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:58,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1448493659, now seen corresponding path program 1 times [2023-11-19 07:42:58,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:58,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610776705] [2023-11-19 07:42:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:58,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:42:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:42:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:42:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-19 07:42:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:42:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 07:42:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,418 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 07:42:58,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:58,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610776705] [2023-11-19 07:42:58,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610776705] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:42:58,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052821057] [2023-11-19 07:42:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:58,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:58,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:58,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:58,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:42:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:42:58,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:58,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:58,970 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 07:42:58,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052821057] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:42:58,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:42:58,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-11-19 07:42:58,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198581203] [2023-11-19 07:42:58,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:42:58,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:42:58,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:58,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:42:58,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:42:58,975 INFO L87 Difference]: Start difference. First operand 931 states and 1144 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-19 07:43:00,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:00,126 INFO L93 Difference]: Finished difference Result 1715 states and 2172 transitions. [2023-11-19 07:43:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-19 07:43:00,127 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 85 [2023-11-19 07:43:00,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:00,133 INFO L225 Difference]: With dead ends: 1715 [2023-11-19 07:43:00,134 INFO L226 Difference]: Without dead ends: 913 [2023-11-19 07:43:00,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 184 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=326, Invalid=1480, Unknown=0, NotChecked=0, Total=1806 [2023-11-19 07:43:00,143 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 342 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:00,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1137 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:43:00,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2023-11-19 07:43:00,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 818. [2023-11-19 07:43:00,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 633 states have (on average 1.2116903633491312) internal successors, (767), 677 states have internal predecessors, (767), 100 states have call successors, (100), 84 states have call predecessors, (100), 84 states have return successors, (119), 89 states have call predecessors, (119), 100 states have call successors, (119) [2023-11-19 07:43:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 986 transitions. [2023-11-19 07:43:00,264 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 986 transitions. Word has length 85 [2023-11-19 07:43:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:00,268 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 986 transitions. [2023-11-19 07:43:00,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-19 07:43:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 986 transitions. [2023-11-19 07:43:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-19 07:43:00,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:00,279 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:00,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:00,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:43:00,504 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:00,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:00,505 INFO L85 PathProgramCache]: Analyzing trace with hash -366703378, now seen corresponding path program 1 times [2023-11-19 07:43:00,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:00,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741880459] [2023-11-19 07:43:00,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:00,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:43:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:43:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:43:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 07:43:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:43:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:43:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:43:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:43:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:43:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-19 07:43:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-19 07:43:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-19 07:43:00,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:00,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741880459] [2023-11-19 07:43:00,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741880459] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:00,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891191744] [2023-11-19 07:43:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:00,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:00,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:00,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:00,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:43:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:00,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:00,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-19 07:43:00,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:00,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891191744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:00,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:00,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2023-11-19 07:43:00,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051404584] [2023-11-19 07:43:00,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:00,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:00,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:00,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:00,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:00,808 INFO L87 Difference]: Start difference. First operand 818 states and 986 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:43:00,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:00,852 INFO L93 Difference]: Finished difference Result 993 states and 1205 transitions. [2023-11-19 07:43:00,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:00,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 158 [2023-11-19 07:43:00,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:00,854 INFO L225 Difference]: With dead ends: 993 [2023-11-19 07:43:00,854 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:43:00,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:00,857 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 36 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:00,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 204 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:00,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:43:00,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:43:00,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:43:00,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2023-11-19 07:43:00,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:00,859 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:43:00,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:43:00,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:43:00,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:43:00,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:43:00,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:01,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:43:01,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:43:02,819 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 629 635) no Hoare annotation was computed. [2023-11-19 07:43:02,820 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 629 635) the Hoare annotation is: true [2023-11-19 07:43:02,820 INFO L899 garLoopResultBuilder]: For program point L818-1(lines 814 825) no Hoare annotation was computed. [2023-11-19 07:43:02,820 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 814 825) the Hoare annotation is: true [2023-11-19 07:43:02,820 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 814 825) no Hoare annotation was computed. [2023-11-19 07:43:02,820 INFO L899 garLoopResultBuilder]: For program point L609(lines 609 615) no Hoare annotation was computed. [2023-11-19 07:43:02,820 INFO L899 garLoopResultBuilder]: For program point L609-2(lines 605 627) no Hoare annotation was computed. [2023-11-19 07:43:02,820 INFO L899 garLoopResultBuilder]: For program point L915(lines 915 921) no Hoare annotation was computed. [2023-11-19 07:43:02,821 INFO L895 garLoopResultBuilder]: At program point L651(line 651) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0))) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not .cse4)) (.cse6 (< |old(~pumpRunning~0)| 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 .cse4 (= ~waterLevel~0 1))) (or .cse1 .cse5 .cse6) (or (and .cse2 (= 2 ~waterLevel~0) .cse3 .cse4) .cse0 .cse1 .cse5) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse1 .cse6) (or .cse0 (not (= 0 ~systemActive~0)))))) [2023-11-19 07:43:02,821 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 602 628) no Hoare annotation was computed. [2023-11-19 07:43:02,821 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 867 880) no Hoare annotation was computed. [2023-11-19 07:43:02,821 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 858 866) no Hoare annotation was computed. [2023-11-19 07:43:02,822 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse1 (<= 1 ~pumpRunning~0)) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (= |old(~pumpRunning~0)| 0)))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 (and .cse1 .cse2) .cse3) (or .cse4 .cse0 .cse5) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 .cse5 .cse3 (and .cse1 (= ~waterLevel~0 1) .cse2)) (or .cse4 (not (= 0 ~systemActive~0))))) [2023-11-19 07:43:02,822 INFO L895 garLoopResultBuilder]: At program point L912(line 912) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse1 (<= 1 ~pumpRunning~0)) (.cse8 (= ~waterLevel~0 1)) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse6 (not (= 0 ~systemActive~0)))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 (and .cse1 .cse2) .cse3) (or .cse4 (and .cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse6) (or .cse4 .cse0 .cse7) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse5 .cse8)) (or .cse0 .cse7 .cse3 (and .cse1 .cse8 .cse2)) (or .cse4 .cse7 .cse6))) [2023-11-19 07:43:02,822 INFO L899 garLoopResultBuilder]: For program point L656-1(lines 637 661) no Hoare annotation was computed. [2023-11-19 07:43:02,822 INFO L899 garLoopResultBuilder]: For program point L912-1(line 912) no Hoare annotation was computed. [2023-11-19 07:43:02,822 INFO L899 garLoopResultBuilder]: For program point L871(lines 871 877) no Hoare annotation was computed. [2023-11-19 07:43:02,823 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__highWaterSensor_returnLabel#1(lines 662 669) no Hoare annotation was computed. [2023-11-19 07:43:02,823 INFO L899 garLoopResultBuilder]: For program point L971(line 971) no Hoare annotation was computed. [2023-11-19 07:43:02,823 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 967 974) no Hoare annotation was computed. [2023-11-19 07:43:02,828 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 602 628) the Hoare annotation is: (let ((.cse3 (not (= 1 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= 2 ~waterLevel~0)) (.cse8 (not (= |old(~waterLevel~0)| 2))) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse3 .cse4 (and .cse5 .cse1 .cse6)) (or .cse2 .cse3 (and .cse0 .cse7 .cse1) .cse8) (or .cse3 (and .cse5 .cse7 .cse1) .cse8 .cse4) (or (and .cse0 .cse1 .cse6) .cse2 (not (= 0 ~systemActive~0))))) [2023-11-19 07:43:02,828 INFO L899 garLoopResultBuilder]: For program point L616-1(lines 616 622) no Hoare annotation was computed. [2023-11-19 07:43:02,829 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 684) no Hoare annotation was computed. [2023-11-19 07:43:02,829 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 653) no Hoare annotation was computed. [2023-11-19 07:43:02,829 INFO L899 garLoopResultBuilder]: For program point L678-2(lines 671 687) no Hoare annotation was computed. [2023-11-19 07:43:02,829 INFO L895 garLoopResultBuilder]: At program point L897(line 897) the Hoare annotation is: (let ((.cse3 (not (= 1 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= 2 ~waterLevel~0)) (.cse8 (not (= |old(~waterLevel~0)| 2))) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse3 .cse4 (and .cse5 .cse1 .cse6)) (or .cse2 .cse3 (and .cse0 .cse7 .cse1) .cse8) (or .cse3 (and .cse5 .cse7 .cse1) .cse8 .cse4) (or (and .cse0 .cse1 .cse6) .cse2 (not (= 0 ~systemActive~0))))) [2023-11-19 07:43:02,829 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 658) no Hoare annotation was computed. [2023-11-19 07:43:02,829 INFO L899 garLoopResultBuilder]: For program point L897-1(line 897) no Hoare annotation was computed. [2023-11-19 07:43:02,829 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 752 770) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 798) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point L761(lines 761 765) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point L794-2(lines 790 801) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point L761-2(lines 761 765) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification5_spec__2_returnLabel#1(lines 892 901) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 927) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCritical_returnLabel#1(lines 826 834) no Hoare annotation was computed. [2023-11-19 07:43:02,830 INFO L899 garLoopResultBuilder]: For program point L910-1(lines 902 930) no Hoare annotation was computed. [2023-11-19 07:43:02,831 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 602 628) no Hoare annotation was computed. [2023-11-19 07:43:02,831 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 696 706) no Hoare annotation was computed. [2023-11-19 07:43:02,831 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2023-11-19 07:43:02,831 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2023-11-19 07:43:02,831 INFO L899 garLoopResultBuilder]: For program point L443(lines 418 447) no Hoare annotation was computed. [2023-11-19 07:43:02,831 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2023-11-19 07:43:02,831 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2023-11-19 07:43:02,831 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2023-11-19 07:43:02,832 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2023-11-19 07:43:02,832 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2023-11-19 07:43:02,832 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 418 447) the Hoare annotation is: true [2023-11-19 07:43:02,832 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2023-11-19 07:43:02,832 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2023-11-19 07:43:02,832 INFO L899 garLoopResultBuilder]: For program point L543(lines 543 549) no Hoare annotation was computed. [2023-11-19 07:43:02,832 INFO L899 garLoopResultBuilder]: For program point L543-1(lines 543 549) no Hoare annotation was computed. [2023-11-19 07:43:02,832 INFO L899 garLoopResultBuilder]: For program point L535(lines 535 539) no Hoare annotation was computed. [2023-11-19 07:43:02,833 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 484 494) no Hoare annotation was computed. [2023-11-19 07:43:02,833 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 943 949) no Hoare annotation was computed. [2023-11-19 07:43:02,833 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 498 520) no Hoare annotation was computed. [2023-11-19 07:43:02,833 INFO L899 garLoopResultBuilder]: For program point L775(lines 775 781) no Hoare annotation was computed. [2023-11-19 07:43:02,833 INFO L899 garLoopResultBuilder]: For program point L775-2(lines 775 781) no Hoare annotation was computed. [2023-11-19 07:43:02,833 INFO L895 garLoopResultBuilder]: At program point L581(lines 532 582) the Hoare annotation is: false [2023-11-19 07:43:02,833 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:43:02,833 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:43:02,833 INFO L899 garLoopResultBuilder]: For program point L569(lines 569 575) no Hoare annotation was computed. [2023-11-19 07:43:02,834 INFO L895 garLoopResultBuilder]: At program point L569-2(lines 563 576) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse5 (= 0 ~systemActive~0)) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse4 .cse5 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse2 .cse3 .cse4 .cse5 (= ~waterLevel~0 1)))) [2023-11-19 07:43:02,834 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 475 481) no Hoare annotation was computed. [2023-11-19 07:43:02,834 INFO L899 garLoopResultBuilder]: For program point L553(lines 553 559) no Hoare annotation was computed. [2023-11-19 07:43:02,834 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 553 559) no Hoare annotation was computed. [2023-11-19 07:43:02,834 INFO L895 garLoopResultBuilder]: At program point L578(lines 533 580) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse5 (= 0 ~systemActive~0)) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse4 .cse5 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse2 .cse3 .cse4 .cse5 (= ~waterLevel~0 1)))) [2023-11-19 07:43:02,834 INFO L895 garLoopResultBuilder]: At program point L545(line 545) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse5 (= 0 ~systemActive~0)) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse4 .cse5 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse2 .cse3 .cse4 .cse5 (= ~waterLevel~0 1)))) [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 515) no Hoare annotation was computed. [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 508 515) no Hoare annotation was computed. [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification5_spec__1_returnLabel#1(lines 884 891) no Hoare annotation was computed. [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 950 956) no Hoare annotation was computed. [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 688 695) no Hoare annotation was computed. [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point L534(lines 533 580) no Hoare annotation was computed. [2023-11-19 07:43:02,835 INFO L899 garLoopResultBuilder]: For program point L563(lines 563 576) no Hoare annotation was computed. [2023-11-19 07:43:02,836 INFO L899 garLoopResultBuilder]: For program point stopSystem_returnLabel#1(lines 771 785) no Hoare annotation was computed. [2023-11-19 07:43:02,836 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 957 965) no Hoare annotation was computed. [2023-11-19 07:43:02,836 INFO L895 garLoopResultBuilder]: At program point L555(line 555) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse5 (= 0 ~systemActive~0)) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse4 .cse5 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse2 .cse3 .cse4 .cse5 (= ~waterLevel~0 1)))) [2023-11-19 07:43:02,836 INFO L899 garLoopResultBuilder]: For program point L584(lines 523 588) no Hoare annotation was computed. [2023-11-19 07:43:02,836 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 802 813) no Hoare annotation was computed. [2023-11-19 07:43:02,836 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 802 813) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< ~pumpRunning~0 1)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2 .cse3) (or .cse4 .cse5 (not (= 0 ~systemActive~0))) (or .cse0 .cse2 (< ~switchedOnBeforeTS~0 1) .cse5) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse2 (= ~waterLevel~0 1)))) [2023-11-19 07:43:02,836 INFO L899 garLoopResultBuilder]: For program point L806-1(lines 802 813) no Hoare annotation was computed. [2023-11-19 07:43:02,837 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 707 715) no Hoare annotation was computed. [2023-11-19 07:43:02,837 INFO L899 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 707 715) no Hoare annotation was computed. [2023-11-19 07:43:02,837 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 707 715) the Hoare annotation is: true [2023-11-19 07:43:02,841 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:02,843 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:43:02,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:43:02 BoogieIcfgContainer [2023-11-19 07:43:02,861 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:43:02,861 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:43:02,861 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:43:02,861 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:43:02,862 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:54" (3/4) ... [2023-11-19 07:43:02,864 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:43:02,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 07:43:02,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 07:43:02,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 07:43:02,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 07:43:02,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 07:43:02,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-19 07:43:02,880 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-19 07:43:02,880 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 07:43:02,881 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:43:02,882 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:43:02,882 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:43:02,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((pumpRunning == 0) && (2 == waterLevel)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) || (((((pumpRunning == 0) && (\result == 1)) && (splverifierCounter == 0)) && (tmp == 1)) && (0 == systemActive))) || ((((((1 <= pumpRunning) && (2 == waterLevel)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) || ((((((1 <= pumpRunning) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) && (1 <= switchedOnBeforeTS))) || ((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) && (waterLevel == 1))) [2023-11-19 07:43:02,966 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((pumpRunning == 0) && (2 == waterLevel)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) || (((((pumpRunning == 0) && (\result == 1)) && (splverifierCounter == 0)) && (tmp == 1)) && (0 == systemActive))) || ((((((1 <= pumpRunning) && (2 == waterLevel)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) || ((((((1 <= pumpRunning) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) && (1 <= switchedOnBeforeTS))) || ((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) && (waterLevel == 1))) [2023-11-19 07:43:03,036 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:43:03,037 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:43:03,037 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:43:03,037 INFO L158 Benchmark]: Toolchain (without parser) took 9367.62ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 107.7MB in the beginning and 189.1MB in the end (delta: -81.4MB). Peak memory consumption was 116.0MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,038 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:03,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.60ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 88.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.98ms. Allocated memory is still 151.0MB. Free memory was 88.1MB in the beginning and 85.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,039 INFO L158 Benchmark]: Boogie Preprocessor took 47.11ms. Allocated memory is still 151.0MB. Free memory was 85.7MB in the beginning and 84.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,039 INFO L158 Benchmark]: RCFGBuilder took 507.10ms. Allocated memory is still 151.0MB. Free memory was 84.3MB in the beginning and 112.5MB in the end (delta: -28.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,040 INFO L158 Benchmark]: TraceAbstraction took 7964.79ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 111.3MB in the beginning and 69.7MB in the end (delta: 41.6MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,040 INFO L158 Benchmark]: Witness Printer took 175.64ms. Allocated memory is still 220.2MB. Free memory was 69.7MB in the beginning and 189.1MB in the end (delta: -119.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.60ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 88.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.98ms. Allocated memory is still 151.0MB. Free memory was 88.1MB in the beginning and 85.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.11ms. Allocated memory is still 151.0MB. Free memory was 85.7MB in the beginning and 84.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.10ms. Allocated memory is still 151.0MB. Free memory was 84.3MB in the beginning and 112.5MB in the end (delta: -28.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7964.79ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 111.3MB in the beginning and 69.7MB in the end (delta: 41.6MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. * Witness Printer took 175.64ms. Allocated memory is still 220.2MB. Free memory was 69.7MB in the beginning and 189.1MB in the end (delta: -119.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [521] - GenericResultAtLocation [Line: 589]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [589] - GenericResultAtLocation [Line: 786]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [786] - GenericResultAtLocation [Line: 881]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [881] - GenericResultAtLocation [Line: 931]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [931] - GenericResultAtLocation [Line: 966]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [966] * 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: 971]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1068 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1050 mSDsluCounter, 4098 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2949 mSDsCounter, 190 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1044 IncrementalHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 190 mSolverCounterUnsat, 1149 mSDtfsCounter, 1044 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 510 GetRequests, 422 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=931occurred in iteration=9, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 203 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 713 PreInvPairs, 763 NumberOfFragments, 936 HoareAnnotationTreeSize, 713 FomulaSimplifications, 460 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 2303 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 875 NumberOfCodeBlocks, 875 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 946 ConstructedInterpolants, 0 QuantifiedInterpolants, 1654 SizeOfPredicates, 3 NumberOfNonLiveVariables, 806 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 441/464 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: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == 0) && (2 == waterLevel)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) || (((((pumpRunning == 0) && (\result == 1)) && (splverifierCounter == 0)) && (tmp == 1)) && (0 == systemActive))) || ((((((1 <= pumpRunning) && (2 == waterLevel)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) || ((((((1 <= pumpRunning) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) && (1 <= switchedOnBeforeTS))) || ((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) && (waterLevel == 1))) - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-19 07:43:03,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868881d1-6f14-4b57-b8ff-f96e277311cc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE