./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.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_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/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_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/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_f8256e03-bb6a-4163-b2cf-e6b93314a4df/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 ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:53,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:54,014 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:56:54,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:54,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:54,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:54,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:54,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:54,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:54,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:54,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:54,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:54,090 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:54,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:54,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:54,093 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:54,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:54,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:54,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:54,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:54,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:54,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:54,096 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:54,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:54,097 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:54,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:54,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:54,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:54,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:54,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:54,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:54,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:56:54,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:54,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:54,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:54,103 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:56:54,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:54,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:54,103 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:54,104 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_f8256e03-bb6a-4163-b2cf-e6b93314a4df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 [2023-11-19 07:56:54,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:54,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:54,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:54,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:54,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:54,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2023-11-19 07:56:57,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:57,792 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:57,792 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2023-11-19 07:56:57,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/data/9b789bbc1/d9267b05b30e40c0baa4c4065043aa3e/FLAG22fa83a5e [2023-11-19 07:56:57,827 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/data/9b789bbc1/d9267b05b30e40c0baa4c4065043aa3e [2023-11-19 07:56:57,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:57,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:57,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:57,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:57,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:57,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:57" (1/1) ... [2023-11-19 07:56:57,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6c2ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:57, skipping insertion in model container [2023-11-19 07:56:57,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:57" (1/1) ... [2023-11-19 07:56:57,920 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:58,137 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_f8256e03-bb6a-4163-b2cf-e6b93314a4df/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c[3777,3790] [2023-11-19 07:56:58,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:58,310 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:58,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-19 07:56:58,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-11-19 07:56:58,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] [2023-11-19 07:56:58,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [207] [2023-11-19 07:56:58,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [573] [2023-11-19 07:56:58,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [672] [2023-11-19 07:56:58,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [915] [2023-11-19 07:56:58,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] [2023-11-19 07:56:58,348 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_f8256e03-bb6a-4163-b2cf-e6b93314a4df/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c[3777,3790] [2023-11-19 07:56:58,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:58,454 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:58,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58 WrapperNode [2023-11-19 07:56:58,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:58,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:58,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:58,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:58,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,531 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 233 [2023-11-19 07:56:58,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:58,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:58,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:58,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:58,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,579 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:58,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:58,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:58,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:58,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:58,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:58,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:58,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:56:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:56:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:56:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:56:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:56:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:56:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 07:56:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 07:56:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:56:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:56:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:56:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:56:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 07:56:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 07:56:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 07:56:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 07:56:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:56:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:56:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:58,763 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:58,765 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:59,089 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:59,100 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:59,100 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:56:59,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:59 BoogieIcfgContainer [2023-11-19 07:56:59,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:59,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:59,109 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:59,113 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:59,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:57" (1/3) ... [2023-11-19 07:56:59,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5106f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:59, skipping insertion in model container [2023-11-19 07:56:59,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (2/3) ... [2023-11-19 07:56:59,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5106f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:59, skipping insertion in model container [2023-11-19 07:56:59,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:59" (3/3) ... [2023-11-19 07:56:59,117 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2023-11-19 07:56:59,139 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:59,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:56:59,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:59,204 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;@5b746027, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:59,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:56:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 89 states have internal predecessors, (108), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:56:59,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:56:59,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:59,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:59,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:59,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash -460090863, now seen corresponding path program 1 times [2023-11-19 07:56:59,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:59,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68598232] [2023-11-19 07:56:59,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:59,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:59,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:56:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:59,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:59,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:59,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68598232] [2023-11-19 07:56:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68598232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:59,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:59,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:59,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668182380] [2023-11-19 07:56:59,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:59,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:56:59,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:59,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:56:59,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:56:59,631 INFO L87 Difference]: Start difference. First operand has 106 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 89 states have internal predecessors, (108), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:56:59,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:59,712 INFO L93 Difference]: Finished difference Result 204 states and 279 transitions. [2023-11-19 07:56:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:56:59,714 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-19 07:56:59,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:59,727 INFO L225 Difference]: With dead ends: 204 [2023-11-19 07:56:59,727 INFO L226 Difference]: Without dead ends: 97 [2023-11-19 07:56:59,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:56:59,739 INFO L413 NwaCegarLoop]: 136 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, 136 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 07:56:59,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:59,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-19 07:56:59,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-19 07:56:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.323943661971831) internal successors, (94), 81 states have internal predecessors, (94), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:56:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 127 transitions. [2023-11-19 07:56:59,825 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 127 transitions. Word has length 25 [2023-11-19 07:56:59,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:59,826 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 127 transitions. [2023-11-19 07:56:59,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:56:59,827 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 127 transitions. [2023-11-19 07:56:59,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:56:59,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:59,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:59,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:56:59,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:59,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash -541866074, now seen corresponding path program 1 times [2023-11-19 07:56:59,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:59,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219835771] [2023-11-19 07:56:59,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:59,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:57:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:00,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:00,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219835771] [2023-11-19 07:57:00,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219835771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:00,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:00,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:00,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39061874] [2023-11-19 07:57:00,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:00,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:00,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:00,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:00,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:00,014 INFO L87 Difference]: Start difference. First operand 97 states and 127 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:57:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:00,067 INFO L93 Difference]: Finished difference Result 156 states and 204 transitions. [2023-11-19 07:57:00,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:00,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-19 07:57:00,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:00,070 INFO L225 Difference]: With dead ends: 156 [2023-11-19 07:57:00,071 INFO L226 Difference]: Without dead ends: 88 [2023-11-19 07:57:00,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:00,078 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 16 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 207 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 07:57:00,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 207 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:00,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-19 07:57:00,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-19 07:57:00,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 75 states have internal predecessors, (87), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 07:57:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 115 transitions. [2023-11-19 07:57:00,099 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 115 transitions. Word has length 26 [2023-11-19 07:57:00,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:00,099 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 115 transitions. [2023-11-19 07:57:00,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:57:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2023-11-19 07:57:00,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:57:00,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:00,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:00,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:00,106 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:00,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:00,107 INFO L85 PathProgramCache]: Analyzing trace with hash -470908360, now seen corresponding path program 1 times [2023-11-19 07:57:00,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:00,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202850504] [2023-11-19 07:57:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:00,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:57:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:00,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:00,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202850504] [2023-11-19 07:57:00,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202850504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:00,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:00,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:00,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561271942] [2023-11-19 07:57:00,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:00,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:00,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:00,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:00,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:00,311 INFO L87 Difference]: Start difference. First operand 88 states and 115 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:57:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:00,352 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2023-11-19 07:57:00,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:00,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-19 07:57:00,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:00,355 INFO L225 Difference]: With dead ends: 249 [2023-11-19 07:57:00,355 INFO L226 Difference]: Without dead ends: 168 [2023-11-19 07:57:00,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:00,358 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 95 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:00,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 236 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:00,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-19 07:57:00,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 165. [2023-11-19 07:57:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 120 states have (on average 1.3583333333333334) internal successors, (163), 139 states have internal predecessors, (163), 28 states have call successors, (28), 16 states have call predecessors, (28), 16 states have return successors, (28), 17 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:57:00,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 219 transitions. [2023-11-19 07:57:00,397 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 219 transitions. Word has length 30 [2023-11-19 07:57:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:00,398 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 219 transitions. [2023-11-19 07:57:00,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:57:00,398 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 219 transitions. [2023-11-19 07:57:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 07:57:00,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:00,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:00,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:00,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:00,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:00,401 INFO L85 PathProgramCache]: Analyzing trace with hash -200767314, now seen corresponding path program 1 times [2023-11-19 07:57:00,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:00,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884247214] [2023-11-19 07:57:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:00,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:57:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:00,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:00,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884247214] [2023-11-19 07:57:00,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884247214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:00,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:00,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:00,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312098423] [2023-11-19 07:57:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:00,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:00,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:00,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:00,630 INFO L87 Difference]: Start difference. First operand 165 states and 219 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:57:00,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:00,760 INFO L93 Difference]: Finished difference Result 475 states and 652 transitions. [2023-11-19 07:57:00,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:00,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-11-19 07:57:00,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:00,766 INFO L225 Difference]: With dead ends: 475 [2023-11-19 07:57:00,766 INFO L226 Difference]: Without dead ends: 317 [2023-11-19 07:57:00,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:00,770 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 82 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:00,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 428 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-19 07:57:00,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 311. [2023-11-19 07:57:00,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 224 states have (on average 1.3392857142857142) internal successors, (300), 259 states have internal predecessors, (300), 56 states have call successors, (56), 32 states have call predecessors, (56), 30 states have return successors, (58), 32 states have call predecessors, (58), 56 states have call successors, (58) [2023-11-19 07:57:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 414 transitions. [2023-11-19 07:57:00,818 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 414 transitions. Word has length 34 [2023-11-19 07:57:00,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:00,819 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 414 transitions. [2023-11-19 07:57:00,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:57:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 414 transitions. [2023-11-19 07:57:00,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 07:57:00,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:00,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:00,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:57:00,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:00,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:00,825 INFO L85 PathProgramCache]: Analyzing trace with hash -119718157, now seen corresponding path program 1 times [2023-11-19 07:57:00,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:00,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479542588] [2023-11-19 07:57:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:00,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:57:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:00,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:00,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479542588] [2023-11-19 07:57:00,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479542588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:00,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:00,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:00,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473342603] [2023-11-19 07:57:00,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:00,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:00,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:00,939 INFO L87 Difference]: Start difference. First operand 311 states and 414 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:57:01,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:01,036 INFO L93 Difference]: Finished difference Result 753 states and 1021 transitions. [2023-11-19 07:57:01,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:01,036 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-19 07:57:01,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:01,046 INFO L225 Difference]: With dead ends: 753 [2023-11-19 07:57:01,046 INFO L226 Difference]: Without dead ends: 449 [2023-11-19 07:57:01,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:01,054 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 65 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:01,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 193 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:01,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-19 07:57:01,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 440. [2023-11-19 07:57:01,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 327 states have (on average 1.2874617737003058) internal successors, (421), 349 states have internal predecessors, (421), 59 states have call successors, (59), 53 states have call predecessors, (59), 53 states have return successors, (83), 54 states have call predecessors, (83), 59 states have call successors, (83) [2023-11-19 07:57:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 563 transitions. [2023-11-19 07:57:01,117 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 563 transitions. Word has length 36 [2023-11-19 07:57:01,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:01,118 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 563 transitions. [2023-11-19 07:57:01,118 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:57:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 563 transitions. [2023-11-19 07:57:01,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 07:57:01,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:01,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:01,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:57:01,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:01,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:01,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1778845972, now seen corresponding path program 1 times [2023-11-19 07:57:01,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:01,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824019093] [2023-11-19 07:57:01,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:01,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:01,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:57:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:01,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:57:01,179 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:57:01,180 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:57:01,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:57:01,185 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 07:57:01,189 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:57:01,216 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated [2023-11-19 07:57:01,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:57:01 BoogieIcfgContainer [2023-11-19 07:57:01,232 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:57:01,233 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:57:01,233 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:57:01,233 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:57:01,233 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:59" (3/4) ... [2023-11-19 07:57:01,234 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:57:01,248 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated [2023-11-19 07:57:01,301 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:57:01,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:57:01,302 INFO L158 Benchmark]: Toolchain (without parser) took 3463.54ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 73.1MB in the beginning and 80.2MB in the end (delta: -7.1MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-19 07:57:01,302 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 117.4MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:01,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.70ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 53.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:57:01,303 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.58ms. Allocated memory is still 117.4MB. Free memory was 53.0MB in the beginning and 50.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:01,303 INFO L158 Benchmark]: Boogie Preprocessor took 53.81ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 50.5MB in the beginning and 113.7MB in the end (delta: -63.2MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2023-11-19 07:57:01,304 INFO L158 Benchmark]: RCFGBuilder took 519.15ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 96.9MB in the end (delta: 16.7MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-11-19 07:57:01,304 INFO L158 Benchmark]: TraceAbstraction took 2123.30ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 83.3MB in the end (delta: 12.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2023-11-19 07:57:01,304 INFO L158 Benchmark]: Witness Printer took 68.43ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 80.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:01,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 117.4MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.70ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 53.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.58ms. Allocated memory is still 117.4MB. Free memory was 53.0MB in the beginning and 50.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.81ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 50.5MB in the beginning and 113.7MB in the end (delta: -63.2MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 519.15ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 96.9MB in the end (delta: 16.7MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2123.30ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 83.3MB in the end (delta: 12.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 68.43ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 80.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] - GenericResultAtLocation [Line: 207]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [207] - GenericResultAtLocation [Line: 573]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [573] - GenericResultAtLocation [Line: 672]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [672] - GenericResultAtLocation [Line: 915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [915] - GenericResultAtLocation [Line: 949]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 203]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L574] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L650] int retValue_acc ; [L651] int tmp ; [L655] FCALL select_helpers() [L656] FCALL select_features() [L657] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L657] RET, EXPR valid_product() [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L661] FCALL setup() [L662] CALL runTest() [L644] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L960] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L962] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L968] tmp = __VERIFIER_nondet_int() [L970] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L972] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L114] COND TRUE waterLevel < 2 [L115] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L972] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND FALSE !(\read(tmp___2)) [L994] tmp___1 = __VERIFIER_nondet_int() [L996] COND TRUE \read(tmp___1) [L998] CALL stopSystem() [L904] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L911] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L998] RET stopSystem() [L1005] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L685] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L692] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L700] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L923] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L923] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND TRUE tmp___0 == 2 [L933] CALL, EXPR isPumpRunning() [L818] int retValue_acc ; [L821] retValue_acc = pumpRunning [L822] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L933] RET, EXPR isPumpRunning() [L933] tmp___1 = isPumpRunning() [L935] COND FALSE !(\read(tmp___1)) [L939] CALL __automaton_fail() [L203] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 262 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 1200 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 592 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 608 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=440occurred in iteration=5, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:57:01,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8256e03-bb6a-4163-b2cf-e6b93314a4df/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE