./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:29:52,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:29:52,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:29:52,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:29:52,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:29:52,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:29:52,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:29:52,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:29:52,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:29:52,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:29:52,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:29:52,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:29:52,470 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:29:52,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:29:52,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:29:52,472 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:29:52,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:29:52,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:29:52,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:29:52,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:29:52,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:29:52,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:29:52,481 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:29:52,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:29:52,487 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:29:52,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:29:52,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:29:52,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:29:52,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:29:52,490 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:29:52,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:29:52,491 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:29:52,491 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:29:52,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:29:52,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:29:52,494 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:29:52,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:29:52,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:29:52,495 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:29:52,495 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_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 [2023-11-12 02:29:52,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:29:52,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:29:52,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:29:52,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:29:52,828 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:29:52,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2023-11-12 02:29:55,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:29:56,242 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:29:56,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2023-11-12 02:29:56,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/data/17cc2f9be/d252683e6f32427a8430e43ad92982b5/FLAG38970ce45 [2023-11-12 02:29:56,280 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/data/17cc2f9be/d252683e6f32427a8430e43ad92982b5 [2023-11-12 02:29:56,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:29:56,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:29:56,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:29:56,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:29:56,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:29:56,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21afe116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56, skipping insertion in model container [2023-11-12 02:29:56,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,382 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:29:56,675 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_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2023-11-12 02:29:56,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:29:56,720 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:29:56,731 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-12 02:29:56,733 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2023-11-12 02:29:56,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] [2023-11-12 02:29:56,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] [2023-11-12 02:29:56,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] [2023-11-12 02:29:56,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [609] [2023-11-12 02:29:56,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [828] [2023-11-12 02:29:56,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] [2023-11-12 02:29:56,789 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_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2023-11-12 02:29:56,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:29:56,827 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:29:56,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56 WrapperNode [2023-11-12 02:29:56,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:29:56,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:29:56,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:29:56,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:29:56,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,896 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 227 [2023-11-12 02:29:56,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:29:56,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:29:56,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:29:56,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:29:56,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:29:56,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:29:56,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:29:56,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:29:56,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (1/1) ... [2023-11-12 02:29:56,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:29:56,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:29:57,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:29:57,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:29:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:29:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:29:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:29:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:29:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:29:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:29:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:29:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-12 02:29:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-12 02:29:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:29:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:29:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:29:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:29:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:29:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:29:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:29:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:29:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:29:57,203 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:29:57,206 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:29:57,599 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:29:57,607 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:29:57,607 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:29:57,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:29:57 BoogieIcfgContainer [2023-11-12 02:29:57,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:29:57,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:29:57,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:29:57,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:29:57,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:29:56" (1/3) ... [2023-11-12 02:29:57,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c98b2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:29:57, skipping insertion in model container [2023-11-12 02:29:57,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:56" (2/3) ... [2023-11-12 02:29:57,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c98b2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:29:57, skipping insertion in model container [2023-11-12 02:29:57,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:29:57" (3/3) ... [2023-11-12 02:29:57,648 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product57.cil.c [2023-11-12 02:29:57,688 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:29:57,688 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:29:57,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:29:57,748 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;@11775e2d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:29:57,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:29:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 80 states have internal predecessors, (100), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:29:57,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:29:57,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:29:57,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:29:57,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:29:57,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:29:57,769 INFO L85 PathProgramCache]: Analyzing trace with hash 358613796, now seen corresponding path program 1 times [2023-11-12 02:29:57,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:29:57,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014082402] [2023-11-12 02:29:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:29:57,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:29:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:29:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:58,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:29:58,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:29:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014082402] [2023-11-12 02:29:58,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014082402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:29:58,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:29:58,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:29:58,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819443916] [2023-11-12 02:29:58,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:29:58,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:29:58,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:29:58,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:29:58,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:29:58,092 INFO L87 Difference]: Start difference. First operand has 93 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 80 states have internal predecessors, (100), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) 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) [2023-11-12 02:29:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:29:58,169 INFO L93 Difference]: Finished difference Result 178 states and 243 transitions. [2023-11-12 02:29:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:29:58,171 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 [2023-11-12 02:29:58,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:29:58,183 INFO L225 Difference]: With dead ends: 178 [2023-11-12 02:29:58,183 INFO L226 Difference]: Without dead ends: 84 [2023-11-12 02:29:58,186 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 [2023-11-12 02:29:58,190 INFO L413 NwaCegarLoop]: 118 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, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:29:58,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:29:58,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-12 02:29:58,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-12 02:29:58,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 65 states have (on average 1.323076923076923) internal successors, (86), 72 states have internal predecessors, (86), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:29:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2023-11-12 02:29:58,238 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 25 [2023-11-12 02:29:58,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:29:58,239 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2023-11-12 02:29:58,239 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) [2023-11-12 02:29:58,239 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2023-11-12 02:29:58,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 02:29:58,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:29:58,243 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] [2023-11-12 02:29:58,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:29:58,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:29:58,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:29:58,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1691145883, now seen corresponding path program 1 times [2023-11-12 02:29:58,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:29:58,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980710601] [2023-11-12 02:29:58,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:29:58,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:29:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:29:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:58,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:29:58,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:29:58,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980710601] [2023-11-12 02:29:58,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980710601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:29:58,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:29:58,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:29:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113859268] [2023-11-12 02:29:58,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:29:58,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:29:58,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:29:58,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:29:58,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:29:58,430 INFO L87 Difference]: Start difference. First operand 84 states and 109 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) [2023-11-12 02:29:58,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:29:58,464 INFO L93 Difference]: Finished difference Result 134 states and 174 transitions. [2023-11-12 02:29:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:29:58,465 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 [2023-11-12 02:29:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:29:58,468 INFO L225 Difference]: With dead ends: 134 [2023-11-12 02:29:58,470 INFO L226 Difference]: Without dead ends: 75 [2023-11-12 02:29:58,472 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 [2023-11-12 02:29:58,475 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 12 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:29:58,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:29:58,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-12 02:29:58,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-12 02:29:58,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 66 states have internal predecessors, (79), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:29:58,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2023-11-12 02:29:58,497 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 26 [2023-11-12 02:29:58,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:29:58,498 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2023-11-12 02:29:58,498 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) [2023-11-12 02:29:58,498 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2023-11-12 02:29:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:29:58,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:29:58,506 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] [2023-11-12 02:29:58,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:29:58,507 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:29:58,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:29:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1032855392, now seen corresponding path program 1 times [2023-11-12 02:29:58,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:29:58,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088576017] [2023-11-12 02:29:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:29:58,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:29:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:58,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:29:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:58,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:29:58,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:29:58,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088576017] [2023-11-12 02:29:58,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088576017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:29:58,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:29:58,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:29:58,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822770209] [2023-11-12 02:29:58,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:29:58,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:29:58,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:29:58,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:29:58,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:29:58,770 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2023-11-12 02:29:58,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:29:58,887 INFO L93 Difference]: Finished difference Result 143 states and 188 transitions. [2023-11-12 02:29:58,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:29:58,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 [2023-11-12 02:29:58,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:29:58,890 INFO L225 Difference]: With dead ends: 143 [2023-11-12 02:29:58,890 INFO L226 Difference]: Without dead ends: 75 [2023-11-12 02:29:58,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:29:58,893 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 121 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:29:58,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 208 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:29:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-12 02:29:58,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-12 02:29:58,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 66 states have internal predecessors, (78), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:29:58,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2023-11-12 02:29:58,907 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 30 [2023-11-12 02:29:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:29:58,907 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2023-11-12 02:29:58,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2023-11-12 02:29:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2023-11-12 02:29:58,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-12 02:29:58,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:29:58,909 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] [2023-11-12 02:29:58,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:29:58,910 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:29:58,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:29:58,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1487539860, now seen corresponding path program 1 times [2023-11-12 02:29:58,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:29:58,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496098762] [2023-11-12 02:29:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:29:58,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:29:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:29:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:29:59,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:29:59,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496098762] [2023-11-12 02:29:59,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496098762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:29:59,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:29:59,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:29:59,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114953373] [2023-11-12 02:29:59,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:29:59,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:29:59,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:29:59,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:29:59,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:29:59,027 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:29:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:29:59,105 INFO L93 Difference]: Finished difference Result 188 states and 246 transitions. [2023-11-12 02:29:59,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:29:59,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 1 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 38 [2023-11-12 02:29:59,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:29:59,108 INFO L225 Difference]: With dead ends: 188 [2023-11-12 02:29:59,109 INFO L226 Difference]: Without dead ends: 120 [2023-11-12 02:29:59,111 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 [2023-11-12 02:29:59,112 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 75 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:29:59,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 170 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:29:59,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-12 02:29:59,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2023-11-12 02:29:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 100 states have internal predecessors, (120), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-12 02:29:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 150 transitions. [2023-11-12 02:29:59,146 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 150 transitions. Word has length 38 [2023-11-12 02:29:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:29:59,147 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 150 transitions. [2023-11-12 02:29:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:29:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 150 transitions. [2023-11-12 02:29:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-12 02:29:59,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:29:59,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:29:59,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:29:59,149 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:29:59,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:29:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash -703403747, now seen corresponding path program 1 times [2023-11-12 02:29:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:29:59,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189031935] [2023-11-12 02:29:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:29:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:29:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:29:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:29:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-12 02:29:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:29:59,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:29:59,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189031935] [2023-11-12 02:29:59,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189031935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:29:59,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:29:59,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:29:59,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397565613] [2023-11-12 02:29:59,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:29:59,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:29:59,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:29:59,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:29:59,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:29:59,357 INFO L87 Difference]: Start difference. First operand 118 states and 150 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:29:59,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:29:59,687 INFO L93 Difference]: Finished difference Result 349 states and 461 transitions. [2023-11-12 02:29:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:29:59,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2023-11-12 02:29:59,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:29:59,692 INFO L225 Difference]: With dead ends: 349 [2023-11-12 02:29:59,692 INFO L226 Difference]: Without dead ends: 238 [2023-11-12 02:29:59,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:29:59,695 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 136 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:29:59,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 355 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:29:59,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-12 02:29:59,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 230. [2023-11-12 02:29:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 179 states have (on average 1.2793296089385475) internal successors, (229), 190 states have internal predecessors, (229), 26 states have call successors, (26), 22 states have call predecessors, (26), 24 states have return successors, (40), 26 states have call predecessors, (40), 26 states have call successors, (40) [2023-11-12 02:29:59,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 295 transitions. [2023-11-12 02:29:59,729 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 295 transitions. Word has length 46 [2023-11-12 02:29:59,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:29:59,730 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 295 transitions. [2023-11-12 02:29:59,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:29:59,730 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 295 transitions. [2023-11-12 02:29:59,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:29:59,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:29:59,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:29:59,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:29:59,733 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:29:59,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:29:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1237679491, now seen corresponding path program 1 times [2023-11-12 02:29:59,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:29:59,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470753879] [2023-11-12 02:29:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:29:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:29:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:29:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:29:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:29:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:29:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:59,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:29:59,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:29:59,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470753879] [2023-11-12 02:29:59,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470753879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:29:59,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:29:59,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:29:59,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759062494] [2023-11-12 02:29:59,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:29:59,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:29:59,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:29:59,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:29:59,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:29:59,938 INFO L87 Difference]: Start difference. First operand 230 states and 295 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:00,539 INFO L93 Difference]: Finished difference Result 606 states and 833 transitions. [2023-11-12 02:30:00,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:30:00,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-12 02:30:00,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:00,548 INFO L225 Difference]: With dead ends: 606 [2023-11-12 02:30:00,548 INFO L226 Difference]: Without dead ends: 469 [2023-11-12 02:30:00,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:30:00,550 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 311 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:00,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 338 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:30:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-12 02:30:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 405. [2023-11-12 02:30:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 315 states have (on average 1.253968253968254) internal successors, (395), 337 states have internal predecessors, (395), 46 states have call successors, (46), 32 states have call predecessors, (46), 43 states have return successors, (91), 48 states have call predecessors, (91), 46 states have call successors, (91) [2023-11-12 02:30:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 532 transitions. [2023-11-12 02:30:00,622 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 532 transitions. Word has length 50 [2023-11-12 02:30:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:00,623 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 532 transitions. [2023-11-12 02:30:00,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 532 transitions. [2023-11-12 02:30:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:30:00,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:00,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:00,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:30:00,626 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:00,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:00,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1103665985, now seen corresponding path program 1 times [2023-11-12 02:30:00,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:00,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146462777] [2023-11-12 02:30:00,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:00,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:30:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:00,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:30:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:00,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:30:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:30:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:00,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:00,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146462777] [2023-11-12 02:30:00,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146462777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:00,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:00,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:30:00,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894153348] [2023-11-12 02:30:00,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:00,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:30:00,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:00,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:30:00,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:30:00,736 INFO L87 Difference]: Start difference. First operand 405 states and 532 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:01,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:01,053 INFO L93 Difference]: Finished difference Result 755 states and 1003 transitions. [2023-11-12 02:30:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:30:01,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-12 02:30:01,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:01,058 INFO L225 Difference]: With dead ends: 755 [2023-11-12 02:30:01,058 INFO L226 Difference]: Without dead ends: 439 [2023-11-12 02:30:01,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:30:01,061 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 146 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:01,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 304 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:30:01,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-11-12 02:30:01,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 405. [2023-11-12 02:30:01,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 337 states have internal predecessors, (394), 46 states have call successors, (46), 32 states have call predecessors, (46), 43 states have return successors, (91), 48 states have call predecessors, (91), 46 states have call successors, (91) [2023-11-12 02:30:01,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 531 transitions. [2023-11-12 02:30:01,118 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 531 transitions. Word has length 50 [2023-11-12 02:30:01,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:01,119 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 531 transitions. [2023-11-12 02:30:01,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:01,119 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 531 transitions. [2023-11-12 02:30:01,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:30:01,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:01,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:01,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:30:01,121 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:01,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:01,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1322520703, now seen corresponding path program 1 times [2023-11-12 02:30:01,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:01,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819336721] [2023-11-12 02:30:01,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:01,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:30:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:30:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:30:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:30:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:01,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:01,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819336721] [2023-11-12 02:30:01,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819336721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:01,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:01,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:30:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513608650] [2023-11-12 02:30:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:01,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:30:01,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:01,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:30:01,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:30:01,234 INFO L87 Difference]: Start difference. First operand 405 states and 531 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:01,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:01,535 INFO L93 Difference]: Finished difference Result 858 states and 1156 transitions. [2023-11-12 02:30:01,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:30:01,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-12 02:30:01,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:01,539 INFO L225 Difference]: With dead ends: 858 [2023-11-12 02:30:01,540 INFO L226 Difference]: Without dead ends: 460 [2023-11-12 02:30:01,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:30:01,543 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:01,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 375 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:30:01,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-11-12 02:30:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 408. [2023-11-12 02:30:01,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 320 states have (on average 1.24375) internal successors, (398), 341 states have internal predecessors, (398), 45 states have call successors, (45), 31 states have call predecessors, (45), 42 states have return successors, (90), 47 states have call predecessors, (90), 45 states have call successors, (90) [2023-11-12 02:30:01,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 533 transitions. [2023-11-12 02:30:01,583 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 533 transitions. Word has length 50 [2023-11-12 02:30:01,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:01,583 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 533 transitions. [2023-11-12 02:30:01,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 533 transitions. [2023-11-12 02:30:01,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 02:30:01,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:01,585 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, 1] [2023-11-12 02:30:01,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:30:01,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:01,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:01,586 INFO L85 PathProgramCache]: Analyzing trace with hash -782958681, now seen corresponding path program 1 times [2023-11-12 02:30:01,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:01,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65140632] [2023-11-12 02:30:01,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:01,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:30:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:30:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:30:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-12 02:30:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:30:01,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:01,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65140632] [2023-11-12 02:30:01,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65140632] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:30:01,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915849415] [2023-11-12 02:30:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:01,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:30:01,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:01,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:30:01,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:30:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:01,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:30:01,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:30:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:02,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:30:02,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915849415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:02,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:30:02,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-12 02:30:02,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665043147] [2023-11-12 02:30:02,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:02,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:30:02,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:02,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:30:02,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:30:02,182 INFO L87 Difference]: Start difference. First operand 408 states and 533 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:02,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:02,366 INFO L93 Difference]: Finished difference Result 1193 states and 1596 transitions. [2023-11-12 02:30:02,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:30:02,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2023-11-12 02:30:02,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:02,373 INFO L225 Difference]: With dead ends: 1193 [2023-11-12 02:30:02,373 INFO L226 Difference]: Without dead ends: 792 [2023-11-12 02:30:02,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:30:02,378 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 59 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:02,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 464 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:30:02,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2023-11-12 02:30:02,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 790. [2023-11-12 02:30:02,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 618 states have (on average 1.233009708737864) internal successors, (762), 656 states have internal predecessors, (762), 89 states have call successors, (89), 62 states have call predecessors, (89), 82 states have return successors, (180), 91 states have call predecessors, (180), 89 states have call successors, (180) [2023-11-12 02:30:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1031 transitions. [2023-11-12 02:30:02,462 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1031 transitions. Word has length 55 [2023-11-12 02:30:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:02,463 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1031 transitions. [2023-11-12 02:30:02,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:02,463 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1031 transitions. [2023-11-12 02:30:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 02:30:02,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:02,466 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, 1, 1] [2023-11-12 02:30:02,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:30:02,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:30:02,673 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:02,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:02,673 INFO L85 PathProgramCache]: Analyzing trace with hash 844263809, now seen corresponding path program 1 times [2023-11-12 02:30:02,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:02,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122856331] [2023-11-12 02:30:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:02,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:02,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:30:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:30:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:02,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:30:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:30:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:30:02,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:02,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122856331] [2023-11-12 02:30:02,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122856331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:02,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:02,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 02:30:02,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158525011] [2023-11-12 02:30:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:02,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:30:02,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:02,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:30:02,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:30:02,924 INFO L87 Difference]: Start difference. First operand 790 states and 1031 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:03,481 INFO L93 Difference]: Finished difference Result 1546 states and 2015 transitions. [2023-11-12 02:30:03,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:30:03,482 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-12 02:30:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:03,488 INFO L225 Difference]: With dead ends: 1546 [2023-11-12 02:30:03,489 INFO L226 Difference]: Without dead ends: 763 [2023-11-12 02:30:03,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-11-12 02:30:03,494 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 301 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:03,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 636 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:30:03,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-11-12 02:30:03,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 746. [2023-11-12 02:30:03,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 586 states have (on average 1.204778156996587) internal successors, (706), 620 states have internal predecessors, (706), 81 states have call successors, (81), 62 states have call predecessors, (81), 78 states have return successors, (123), 82 states have call predecessors, (123), 81 states have call successors, (123) [2023-11-12 02:30:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 910 transitions. [2023-11-12 02:30:03,583 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 910 transitions. Word has length 56 [2023-11-12 02:30:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:03,584 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 910 transitions. [2023-11-12 02:30:03,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:30:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 910 transitions. [2023-11-12 02:30:03,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-12 02:30:03,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:03,588 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, 1, 1, 1, 1, 1] [2023-11-12 02:30:03,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:30:03,588 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:03,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:03,589 INFO L85 PathProgramCache]: Analyzing trace with hash 605332931, now seen corresponding path program 1 times [2023-11-12 02:30:03,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:03,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699847286] [2023-11-12 02:30:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:03,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:03,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:30:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:30:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:03,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:30:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:03,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:30:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:03,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:30:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:03,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:30:03,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:03,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699847286] [2023-11-12 02:30:03,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699847286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:03,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:03,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-12 02:30:03,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759922597] [2023-11-12 02:30:03,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:03,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:30:03,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:03,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:30:03,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:30:03,793 INFO L87 Difference]: Start difference. First operand 746 states and 910 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:30:05,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:05,059 INFO L93 Difference]: Finished difference Result 1464 states and 1804 transitions. [2023-11-12 02:30:05,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-12 02:30:05,060 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-11-12 02:30:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:05,066 INFO L225 Difference]: With dead ends: 1464 [2023-11-12 02:30:05,066 INFO L226 Difference]: Without dead ends: 725 [2023-11-12 02:30:05,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=262, Invalid=1070, Unknown=0, NotChecked=0, Total=1332 [2023-11-12 02:30:05,071 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 359 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:05,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 278 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 02:30:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-11-12 02:30:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 714. [2023-11-12 02:30:05,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 554 states have (on average 1.1732851985559567) internal successors, (650), 588 states have internal predecessors, (650), 81 states have call successors, (81), 62 states have call predecessors, (81), 78 states have return successors, (117), 82 states have call predecessors, (117), 81 states have call successors, (117) [2023-11-12 02:30:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 848 transitions. [2023-11-12 02:30:05,152 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 848 transitions. Word has length 59 [2023-11-12 02:30:05,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:05,153 INFO L495 AbstractCegarLoop]: Abstraction has 714 states and 848 transitions. [2023-11-12 02:30:05,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:30:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 848 transitions. [2023-11-12 02:30:05,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-12 02:30:05,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:05,160 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:05,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:30:05,160 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:05,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:05,161 INFO L85 PathProgramCache]: Analyzing trace with hash 486604430, now seen corresponding path program 1 times [2023-11-12 02:30:05,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:05,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172065664] [2023-11-12 02:30:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:05,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:05,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:30:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:05,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:30:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:30:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:30:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:05,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:30:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:05,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:30:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 02:30:05,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:05,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172065664] [2023-11-12 02:30:05,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172065664] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:30:05,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942731843] [2023-11-12 02:30:05,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:05,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:30:05,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:05,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:30:05,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:30:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:05,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:30:05,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:30:05,629 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-12 02:30:05,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:30:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 02:30:05,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942731843] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:30:05,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:30:05,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 17 [2023-11-12 02:30:05,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381058941] [2023-11-12 02:30:05,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:30:05,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-12 02:30:05,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:05,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-12 02:30:05,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:30:05,954 INFO L87 Difference]: Start difference. First operand 714 states and 848 transitions. Second operand has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 13 states have internal predecessors, (123), 6 states have call successors, (18), 9 states have call predecessors, (18), 6 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-12 02:30:06,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:06,965 INFO L93 Difference]: Finished difference Result 1453 states and 1801 transitions. [2023-11-12 02:30:06,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-12 02:30:06,966 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 13 states have internal predecessors, (123), 6 states have call successors, (18), 9 states have call predecessors, (18), 6 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 87 [2023-11-12 02:30:06,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:06,967 INFO L225 Difference]: With dead ends: 1453 [2023-11-12 02:30:06,967 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:30:06,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 179 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=571, Invalid=1499, Unknown=0, NotChecked=0, Total=2070 [2023-11-12 02:30:06,973 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 630 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:06,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 529 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:30:06,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:30:06,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:30:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:30:06,975 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2023-11-12 02:30:06,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:06,975 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:30:06,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 13 states have internal predecessors, (123), 6 states have call successors, (18), 9 states have call predecessors, (18), 6 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-12 02:30:06,976 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:30:06,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:30:06,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:30:06,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:30:07,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:30:07,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:30:10,135 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 641 647) no Hoare annotation was computed. [2023-11-12 02:30:10,136 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 641 647) the Hoare annotation is: true [2023-11-12 02:30:10,136 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 450 461) the Hoare annotation is: (let ((.cse5 (< ~pumpRunning~0 1)) (.cse1 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse0 (< 2 ~waterLevel~0)) (.cse2 (not (= ~pumpRunning~0 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse6 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse7 (< |old(~methaneLevelCritical~0)| 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse4 .cse6 .cse7) (or .cse0 .cse5 .cse1 .cse3 .cse4) (or .cse0 .cse2 .cse4 .cse6 .cse7))) [2023-11-12 02:30:10,137 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 450 461) no Hoare annotation was computed. [2023-11-12 02:30:10,137 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 450 461) no Hoare annotation was computed. [2023-11-12 02:30:10,137 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 896 925) no Hoare annotation was computed. [2023-11-12 02:30:10,137 INFO L899 garLoopResultBuilder]: For program point L921(lines 896 925) no Hoare annotation was computed. [2023-11-12 02:30:10,137 INFO L899 garLoopResultBuilder]: For program point L917(line 917) no Hoare annotation was computed. [2023-11-12 02:30:10,137 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 914) no Hoare annotation was computed. [2023-11-12 02:30:10,138 INFO L902 garLoopResultBuilder]: At program point L910-1(lines 910 914) the Hoare annotation is: true [2023-11-12 02:30:10,138 INFO L899 garLoopResultBuilder]: For program point L907(line 907) no Hoare annotation was computed. [2023-11-12 02:30:10,138 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 896 925) the Hoare annotation is: true [2023-11-12 02:30:10,138 INFO L902 garLoopResultBuilder]: At program point L906-2(lines 906 920) the Hoare annotation is: true [2023-11-12 02:30:10,138 INFO L902 garLoopResultBuilder]: At program point L902(line 902) the Hoare annotation is: true [2023-11-12 02:30:10,138 INFO L899 garLoopResultBuilder]: For program point L902-1(line 902) no Hoare annotation was computed. [2023-11-12 02:30:10,138 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 596) no Hoare annotation was computed. [2023-11-12 02:30:10,139 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2023-11-12 02:30:10,139 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 517 525) no Hoare annotation was computed. [2023-11-12 02:30:10,139 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 617 640) no Hoare annotation was computed. [2023-11-12 02:30:10,139 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 494 502) no Hoare annotation was computed. [2023-11-12 02:30:10,139 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) (= |timeShift_processEnvironment_~tmp~5#1| 0) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse6 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse3 .cse6) (or .cse1 .cse2 .cse4 .cse5 .cse3) (or .cse0 .cse1 .cse3 .cse6))) [2023-11-12 02:30:10,140 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 592) no Hoare annotation was computed. [2023-11-12 02:30:10,140 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 595) no Hoare annotation was computed. [2023-11-12 02:30:10,140 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 567 599) no Hoare annotation was computed. [2023-11-12 02:30:10,140 INFO L895 garLoopResultBuilder]: At program point L574(line 574) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse7 (<= ~waterLevel~0 1)) (.cse13 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse12 (= 1 ~systemActive~0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (and (<= 1 ~pumpRunning~0) .cse2)) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse3 (not .cse12)) (.cse9 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7 .cse13)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse10 (< |old(~pumpRunning~0)| 1)) (.cse11 (and .cse1 .cse7 .cse12 .cse13)) (.cse5 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4 .cse5 .cse6) (or (and .cse1 .cse7 .cse2) .cse0 .cse3 .cse8 .cse4 .cse5) (or .cse3 .cse9 .cse10 .cse11 .cse5 .cse6) (or .cse3 .cse9 .cse8 .cse10 .cse11 .cse5)))) [2023-11-12 02:30:10,141 INFO L899 garLoopResultBuilder]: For program point L574-1(line 574) no Hoare annotation was computed. [2023-11-12 02:30:10,141 INFO L895 garLoopResultBuilder]: At program point L694(line 694) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse0 .cse6 .cse1 .cse2))) [2023-11-12 02:30:10,141 INFO L899 garLoopResultBuilder]: For program point L694-1(lines 675 699) no Hoare annotation was computed. [2023-11-12 02:30:10,141 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 628 634) no Hoare annotation was computed. [2023-11-12 02:30:10,142 INFO L899 garLoopResultBuilder]: For program point L818(lines 818 822) no Hoare annotation was computed. [2023-11-12 02:30:10,142 INFO L899 garLoopResultBuilder]: For program point L818-2(lines 818 822) no Hoare annotation was computed. [2023-11-12 02:30:10,142 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2023-11-12 02:30:10,142 INFO L899 garLoopResultBuilder]: For program point L430-2(lines 426 437) no Hoare annotation was computed. [2023-11-12 02:30:10,142 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 601 608) no Hoare annotation was computed. [2023-11-12 02:30:10,143 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 617 640) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and (= ~pumpRunning~0 0) .cse8)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse3) (or .cse6 .cse7 .cse0 .cse3 .cse4) (or .cse6 .cse7 .cse0 .cse5 .cse3)))) [2023-11-12 02:30:10,143 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 726 733) no Hoare annotation was computed. [2023-11-12 02:30:10,143 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 809 827) no Hoare annotation was computed. [2023-11-12 02:30:10,143 INFO L899 garLoopResultBuilder]: For program point L621-1(lines 620 639) no Hoare annotation was computed. [2023-11-12 02:30:10,143 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 691) no Hoare annotation was computed. [2023-11-12 02:30:10,143 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 617 640) no Hoare annotation was computed. [2023-11-12 02:30:10,144 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 745 753) no Hoare annotation was computed. [2023-11-12 02:30:10,144 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 605) no Hoare annotation was computed. [2023-11-12 02:30:10,144 INFO L899 garLoopResultBuilder]: For program point L679(lines 679 696) no Hoare annotation was computed. [2023-11-12 02:30:10,144 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 462 470) the Hoare annotation is: true [2023-11-12 02:30:10,144 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 462 470) no Hoare annotation was computed. [2023-11-12 02:30:10,144 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 462 470) no Hoare annotation was computed. [2023-11-12 02:30:10,145 INFO L895 garLoopResultBuilder]: At program point L886(lines 839 887) the Hoare annotation is: false [2023-11-12 02:30:10,145 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 984) no Hoare annotation was computed. [2023-11-12 02:30:10,145 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 957 966) no Hoare annotation was computed. [2023-11-12 02:30:10,145 INFO L899 garLoopResultBuilder]: For program point L977-2(lines 977 984) no Hoare annotation was computed. [2023-11-12 02:30:10,145 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 541 547) no Hoare annotation was computed. [2023-11-12 02:30:10,145 INFO L899 garLoopResultBuilder]: For program point L841(lines 840 885) no Hoare annotation was computed. [2023-11-12 02:30:10,145 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 967 989) no Hoare annotation was computed. [2023-11-12 02:30:10,146 INFO L899 garLoopResultBuilder]: For program point L870(lines 870 881) no Hoare annotation was computed. [2023-11-12 02:30:10,146 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:30:10,146 INFO L895 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse7 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse8 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse8 .cse2 .cse3 .cse4 .cse5 .cse6))) [2023-11-12 02:30:10,146 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:30:10,147 INFO L895 garLoopResultBuilder]: At program point L883(lines 840 885) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse8 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse8 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse1 .cse2 (<= ~waterLevel~0 1) .cse3 .cse4 .cse6))) [2023-11-12 02:30:10,147 INFO L899 garLoopResultBuilder]: For program point L850(lines 850 856) no Hoare annotation was computed. [2023-11-12 02:30:10,147 INFO L899 garLoopResultBuilder]: For program point L850-1(lines 850 856) no Hoare annotation was computed. [2023-11-12 02:30:10,147 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 846) no Hoare annotation was computed. [2023-11-12 02:30:10,147 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 950 956) no Hoare annotation was computed. [2023-11-12 02:30:10,147 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:30:10,147 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 880) no Hoare annotation was computed. [2023-11-12 02:30:10,148 INFO L895 garLoopResultBuilder]: At program point L876-2(lines 870 881) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse7 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse8 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse8 .cse2 .cse3 .cse4 .cse5 .cse6))) [2023-11-12 02:30:10,148 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:30:10,148 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 548 554) no Hoare annotation was computed. [2023-11-12 02:30:10,148 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 866) no Hoare annotation was computed. [2023-11-12 02:30:10,148 INFO L899 garLoopResultBuilder]: For program point L860-1(lines 860 866) no Hoare annotation was computed. [2023-11-12 02:30:10,149 INFO L899 garLoopResultBuilder]: For program point L889(lines 830 893) no Hoare annotation was computed. [2023-11-12 02:30:10,149 INFO L895 garLoopResultBuilder]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse8 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse8 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse1 .cse2 (<= ~waterLevel~0 1) .cse3 .cse4 .cse6))) [2023-11-12 02:30:10,149 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 555 563) no Hoare annotation was computed. [2023-11-12 02:30:10,149 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 803) no Hoare annotation was computed. [2023-11-12 02:30:10,149 INFO L899 garLoopResultBuilder]: For program point L799-2(lines 799 803) no Hoare annotation was computed. [2023-11-12 02:30:10,150 INFO L895 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: (let ((.cse1 (< 1 ~waterLevel~0)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1))) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse2 .cse7) (or .cse5 .cse6 .cse0 .cse7 .cse4))) [2023-11-12 02:30:10,150 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 665) no Hoare annotation was computed. [2023-11-12 02:30:10,150 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 670) no Hoare annotation was computed. [2023-11-12 02:30:10,150 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 649 673) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< 1 ~waterLevel~0)) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse8 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse1 .cse3) (or .cse5 .cse6 .cse7 .cse1 .cse8) (or .cse0 .cse1 .cse2 .cse4 .cse8))) [2023-11-12 02:30:10,150 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 503 516) no Hoare annotation was computed. [2023-11-12 02:30:10,151 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 790 808) no Hoare annotation was computed. [2023-11-12 02:30:10,151 INFO L895 garLoopResultBuilder]: At program point L668(line 668) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (< 1 ~waterLevel~0)) (.cse7 (< |old(~pumpRunning~0)| 1)) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse6) (or .cse4 .cse2 .cse5 .cse7 .cse3))) [2023-11-12 02:30:10,151 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 649 673) no Hoare annotation was computed. [2023-11-12 02:30:10,151 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 513) no Hoare annotation was computed. [2023-11-12 02:30:10,151 INFO L899 garLoopResultBuilder]: For program point L668-1(lines 649 673) no Hoare annotation was computed. [2023-11-12 02:30:10,152 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2023-11-12 02:30:10,152 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 734 744) no Hoare annotation was computed. [2023-11-12 02:30:10,152 INFO L899 garLoopResultBuilder]: For program point L716-2(lines 709 725) no Hoare annotation was computed. [2023-11-12 02:30:10,152 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensor_returnLabel#1(lines 700 707) no Hoare annotation was computed. [2023-11-12 02:30:10,152 INFO L895 garLoopResultBuilder]: At program point L739(line 739) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= 1 ~systemActive~0)) (.cse11 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (< 1 ~waterLevel~0)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse4 (< 2 ~waterLevel~0)) (.cse5 (not .cse11)) (.cse0 (not .cse10)) (.cse6 (and .cse9 (<= ~waterLevel~0 1) .cse10 .cse11)) (.cse7 (and .cse9 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__highWaterSensor_~tmp~4#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (.cse8 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse2 .cse6 .cse7) (or .cse0 .cse1 .cse3 .cse8) (or .cse4 .cse5 .cse0 .cse6 .cse7 .cse8)))) [2023-11-12 02:30:10,153 INFO L899 garLoopResultBuilder]: For program point L739-1(line 739) no Hoare annotation was computed. [2023-11-12 02:30:10,153 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 438 449) no Hoare annotation was computed. [2023-11-12 02:30:10,153 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 438 449) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse5 (< ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse6 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse6 .cse2) (or .cse5 .cse1 .cse2 .cse3 .cse4))) [2023-11-12 02:30:10,153 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 438 449) no Hoare annotation was computed. [2023-11-12 02:30:10,156 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:10,159 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:30:10,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:30:10 BoogieIcfgContainer [2023-11-12 02:30:10,174 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:30:10,175 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:30:10,175 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:30:10,176 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:30:10,176 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:29:57" (3/4) ... [2023-11-12 02:30:10,178 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:30:10,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-12 02:30:10,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-12 02:30:10,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-12 02:30:10,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-12 02:30:10,184 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-12 02:30:10,184 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:30:10,184 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-12 02:30:10,192 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-12 02:30:10,193 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:30:10,194 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:30:10,194 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:30:10,195 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:30:10,225 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1)) || (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || (((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (\result == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) [2023-11-12 02:30:10,260 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1)) || (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || (((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (\result == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) [2023-11-12 02:30:10,310 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:30:10,311 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:30:10,311 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:30:10,312 INFO L158 Benchmark]: Toolchain (without parser) took 14023.01ms. Allocated memory was 165.7MB in the beginning and 260.0MB in the end (delta: 94.4MB). Free memory was 118.9MB in the beginning and 181.2MB in the end (delta: -62.3MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-11-12 02:30:10,313 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 165.7MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:30:10,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.87ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 99.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:30:10,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.80ms. Allocated memory is still 165.7MB. Free memory was 99.1MB in the beginning and 96.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:30:10,314 INFO L158 Benchmark]: Boogie Preprocessor took 32.17ms. Allocated memory is still 165.7MB. Free memory was 96.7MB in the beginning and 95.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:30:10,315 INFO L158 Benchmark]: RCFGBuilder took 680.26ms. Allocated memory is still 165.7MB. Free memory was 95.1MB in the beginning and 77.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 02:30:10,316 INFO L158 Benchmark]: TraceAbstraction took 12536.39ms. Allocated memory was 165.7MB in the beginning and 260.0MB in the end (delta: 94.4MB). Free memory was 134.0MB in the beginning and 188.5MB in the end (delta: -54.6MB). Peak memory consumption was 154.0MB. Max. memory is 16.1GB. [2023-11-12 02:30:10,316 INFO L158 Benchmark]: Witness Printer took 136.52ms. Allocated memory is still 260.0MB. Free memory was 188.5MB in the beginning and 181.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:30:10,319 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 165.7MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.87ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 99.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.80ms. Allocated memory is still 165.7MB. Free memory was 99.1MB in the beginning and 96.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.17ms. Allocated memory is still 165.7MB. Free memory was 96.7MB in the beginning and 95.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 680.26ms. Allocated memory is still 165.7MB. Free memory was 95.1MB in the beginning and 77.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12536.39ms. Allocated memory was 165.7MB in the beginning and 260.0MB in the end (delta: 94.4MB). Free memory was 134.0MB in the beginning and 188.5MB in the end (delta: -54.6MB). Peak memory consumption was 154.0MB. Max. memory is 16.1GB. * Witness Printer took 136.52ms. Allocated memory is still 260.0MB. Free memory was 188.5MB in the beginning and 181.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] - GenericResultAtLocation [Line: 564]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] - GenericResultAtLocation [Line: 600]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] - GenericResultAtLocation [Line: 609]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [609] - GenericResultAtLocation [Line: 828]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [828] - GenericResultAtLocation [Line: 894]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] * 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: 605]: 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 8 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2334 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2314 mSDsluCounter, 3951 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2903 mSDsCounter, 590 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3502 IncrementalHoareTripleChecker+Invalid, 4092 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 590 mSolverCounterUnsat, 1048 mSDtfsCounter, 3502 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 491 GetRequests, 320 SyntacticMatches, 7 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=790occurred in iteration=9, InterpolantAutomatonStates: 143, 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, 12 MinimizatonAttempts, 190 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 1049 PreInvPairs, 1210 NumberOfFragments, 1226 HoareAnnotationTreeSize, 1049 FomulaSimplifications, 942 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 21 FomulaSimplificationsInter, 5104 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 714 NumberOfCodeBlocks, 714 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 786 ConstructedInterpolants, 0 QuantifiedInterpolants, 1534 SizeOfPredicates, 7 NumberOfNonLiveVariables, 544 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 71/90 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: 906]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: ((((((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1)) || (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || (((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (\result == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (\result == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-12 02:30:10,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_922afbf3-c77a-4f5f-8bd0-36ee6ea6ea3c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE