./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme --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 f18c518732faf536b365bed3360055c2f4eb753a861011ef1bbe74f5b721db8d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:01:28,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:01:28,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:01:28,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:01:28,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:01:28,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:01:28,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:01:28,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:01:28,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:01:28,678 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:01:28,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:01:28,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:01:28,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:01:28,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:01:28,682 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:01:28,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:01:28,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:01:28,684 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:01:28,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:01:28,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:01:28,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:01:28,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:01:28,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:01:28,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:01:28,688 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:01:28,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:01:28,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:01:28,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:01:28,691 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:01:28,691 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:01:28,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:01:28,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:28,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:01:28,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:01:28,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:01:28,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:01:28,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:01:28,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:01:28,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:01:28,703 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:01:28,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:01:28,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:01:28,704 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_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f18c518732faf536b365bed3360055c2f4eb753a861011ef1bbe74f5b721db8d [2023-11-26 12:01:28,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:01:28,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:01:28,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:01:29,000 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:01:29,001 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:01:29,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2023-11-26 12:01:32,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:01:32,505 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:01:32,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2023-11-26 12:01:32,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/data/ca99c87b0/0587a144ac6547c2af997d15efa36c73/FLAGc8799f44b [2023-11-26 12:01:32,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/data/ca99c87b0/0587a144ac6547c2af997d15efa36c73 [2023-11-26 12:01:32,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:01:32,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:01:32,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:32,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:01:32,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:01:32,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d73ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32, skipping insertion in model container [2023-11-26 12:01:32,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,615 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:01:32,914 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_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c[18005,18018] [2023-11-26 12:01:32,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:32,951 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:01:32,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-26 12:01:32,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] [2023-11-26 12:01:32,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [516] [2023-11-26 12:01:32,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [721] [2023-11-26 12:01:32,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [791] [2023-11-26 12:01:32,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [829] [2023-11-26 12:01:32,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] [2023-11-26 12:01:32,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [936] [2023-11-26 12:01:33,062 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_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c[18005,18018] [2023-11-26 12:01:33,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:33,085 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:01:33,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33 WrapperNode [2023-11-26 12:01:33,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:33,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:33,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:01:33,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:01:33,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,159 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 208 [2023-11-26 12:01:33,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:33,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:01:33,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:01:33,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:01:33,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,179 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,195 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:01:33,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:01:33,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:01:33,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:01:33,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:01:33,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:33,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:33,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:01:33,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:01:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:01:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-26 12:01:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-26 12:01:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 12:01:33,357 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 12:01:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 12:01:33,357 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 12:01:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 12:01:33,358 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 12:01:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-26 12:01:33,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-26 12:01:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:01:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 12:01:33,359 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 12:01:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:01:33,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:01:33,454 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:01:33,456 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:01:33,828 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:01:33,949 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:01:33,949 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:01:33,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:33 BoogieIcfgContainer [2023-11-26 12:01:33,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:01:33,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:01:33,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:01:33,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:01:33,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:01:32" (1/3) ... [2023-11-26 12:01:33,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e69a5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:33, skipping insertion in model container [2023-11-26 12:01:33,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (2/3) ... [2023-11-26 12:01:33,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e69a5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:33, skipping insertion in model container [2023-11-26 12:01:33,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:33" (3/3) ... [2023-11-26 12:01:33,959 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product44.cil.c [2023-11-26 12:01:33,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:01:33,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:01:34,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:01:34,055 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;@477e493d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:01:34,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:01:34,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 54 states have internal predecessors, (74), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 12:01:34,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:01:34,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:34,076 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:34,076 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:34,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:34,082 INFO L85 PathProgramCache]: Analyzing trace with hash 156571843, now seen corresponding path program 1 times [2023-11-26 12:01:34,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:34,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935291472] [2023-11-26 12:01:34,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:34,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 12:01:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:01:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:34,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:34,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:34,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935291472] [2023-11-26 12:01:34,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935291472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:34,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:34,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:34,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619680431] [2023-11-26 12:01:34,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:34,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:01:34,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:34,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:01:34,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:01:34,530 INFO L87 Difference]: Start difference. First operand has 66 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 54 states have internal predecessors, (74), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:34,634 INFO L93 Difference]: Finished difference Result 130 states and 189 transitions. [2023-11-26 12:01:34,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:01:34,637 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-26 12:01:34,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:34,649 INFO L225 Difference]: With dead ends: 130 [2023-11-26 12:01:34,649 INFO L226 Difference]: Without dead ends: 61 [2023-11-26 12:01:34,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:01:34,660 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:34,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:34,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-26 12:01:34,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-26 12:01:34,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 50 states have internal predecessors, (64), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:01:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 83 transitions. [2023-11-26 12:01:34,732 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 83 transitions. Word has length 22 [2023-11-26 12:01:34,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:34,733 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 83 transitions. [2023-11-26 12:01:34,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:34,733 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 83 transitions. [2023-11-26 12:01:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 12:01:34,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:34,740 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:34,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:01:34,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:34,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash 647013142, now seen corresponding path program 1 times [2023-11-26 12:01:34,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:34,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811454437] [2023-11-26 12:01:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:34,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:34,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 12:01:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:34,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-26 12:01:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:34,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:34,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811454437] [2023-11-26 12:01:34,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811454437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:34,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:34,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:34,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502448769] [2023-11-26 12:01:34,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:34,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:34,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:34,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:34,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:34,924 INFO L87 Difference]: Start difference. First operand 61 states and 83 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:34,964 INFO L93 Difference]: Finished difference Result 93 states and 126 transitions. [2023-11-26 12:01:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:34,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-26 12:01:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:34,967 INFO L225 Difference]: With dead ends: 93 [2023-11-26 12:01:34,967 INFO L226 Difference]: Without dead ends: 53 [2023-11-26 12:01:34,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:34,970 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:34,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 104 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:34,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-26 12:01:34,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-26 12:01:34,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.45) internal successors, (58), 45 states have internal predecessors, (58), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:34,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2023-11-26 12:01:34,981 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 23 [2023-11-26 12:01:34,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:34,981 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2023-11-26 12:01:34,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2023-11-26 12:01:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 12:01:34,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:34,983 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 12:01:34,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:01:34,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:34,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:34,985 INFO L85 PathProgramCache]: Analyzing trace with hash -551260707, now seen corresponding path program 1 times [2023-11-26 12:01:34,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:34,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296368782] [2023-11-26 12:01:34,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:34,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:01:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 12:01:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:35,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296368782] [2023-11-26 12:01:35,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296368782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:35,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:35,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:35,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736248950] [2023-11-26 12:01:35,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:35,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:35,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:35,075 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:35,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:35,139 INFO L93 Difference]: Finished difference Result 155 states and 213 transitions. [2023-11-26 12:01:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:35,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-11-26 12:01:35,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:35,142 INFO L225 Difference]: With dead ends: 155 [2023-11-26 12:01:35,142 INFO L226 Difference]: Without dead ends: 104 [2023-11-26 12:01:35,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:35,145 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 63 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:35,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 126 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:35,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-26 12:01:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2023-11-26 12:01:35,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 75 states have (on average 1.4533333333333334) internal successors, (109), 84 states have internal predecessors, (109), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-26 12:01:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2023-11-26 12:01:35,166 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 26 [2023-11-26 12:01:35,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:35,166 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2023-11-26 12:01:35,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:35,167 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2023-11-26 12:01:35,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-26 12:01:35,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:35,169 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 12:01:35,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:01:35,170 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:35,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:35,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1291148094, now seen corresponding path program 1 times [2023-11-26 12:01:35,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:35,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990751401] [2023-11-26 12:01:35,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:35,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:01:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:01:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:35,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:35,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990751401] [2023-11-26 12:01:35,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990751401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:35,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:35,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:35,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527714749] [2023-11-26 12:01:35,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:35,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:35,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:35,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:35,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:35,232 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:35,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:35,309 INFO L93 Difference]: Finished difference Result 275 states and 380 transitions. [2023-11-26 12:01:35,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:35,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-26 12:01:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:35,312 INFO L225 Difference]: With dead ends: 275 [2023-11-26 12:01:35,312 INFO L226 Difference]: Without dead ends: 177 [2023-11-26 12:01:35,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:35,315 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 54 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:35,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 110 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:35,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-26 12:01:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2023-11-26 12:01:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 130 states have (on average 1.4076923076923078) internal successors, (183), 143 states have internal predecessors, (183), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-26 12:01:35,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 235 transitions. [2023-11-26 12:01:35,387 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 235 transitions. Word has length 29 [2023-11-26 12:01:35,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:35,388 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 235 transitions. [2023-11-26 12:01:35,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 235 transitions. [2023-11-26 12:01:35,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-26 12:01:35,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:35,395 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 12:01:35,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:01:35,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:35,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:35,396 INFO L85 PathProgramCache]: Analyzing trace with hash -618715526, now seen corresponding path program 1 times [2023-11-26 12:01:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:35,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062816901] [2023-11-26 12:01:35,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:35,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:01:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:01:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:35,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:35,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062816901] [2023-11-26 12:01:35,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062816901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:35,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:35,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:01:35,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547238332] [2023-11-26 12:01:35,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:35,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:01:35,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:35,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:01:35,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:01:35,614 INFO L87 Difference]: Start difference. First operand 175 states and 235 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:35,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:35,802 INFO L93 Difference]: Finished difference Result 350 states and 472 transitions. [2023-11-26 12:01:35,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:01:35,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-11-26 12:01:35,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:35,806 INFO L225 Difference]: With dead ends: 350 [2023-11-26 12:01:35,806 INFO L226 Difference]: Without dead ends: 177 [2023-11-26 12:01:35,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:01:35,812 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 53 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:35,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 258 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:35,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-26 12:01:35,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 173. [2023-11-26 12:01:35,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 128 states have (on average 1.3828125) internal successors, (177), 141 states have internal predecessors, (177), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-26 12:01:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 229 transitions. [2023-11-26 12:01:35,836 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 229 transitions. Word has length 29 [2023-11-26 12:01:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:35,837 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 229 transitions. [2023-11-26 12:01:35,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 229 transitions. [2023-11-26 12:01:35,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 12:01:35,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:35,839 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:35,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:01:35,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:35,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:35,841 INFO L85 PathProgramCache]: Analyzing trace with hash 243757737, now seen corresponding path program 1 times [2023-11-26 12:01:35,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:35,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927290041] [2023-11-26 12:01:35,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:35,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:01:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 12:01:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:35,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:35,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927290041] [2023-11-26 12:01:35,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927290041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:35,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:35,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:01:35,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315850676] [2023-11-26 12:01:35,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:35,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:35,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:35,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:35,924 INFO L87 Difference]: Start difference. First operand 173 states and 229 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:35,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:35,983 INFO L93 Difference]: Finished difference Result 350 states and 472 transitions. [2023-11-26 12:01:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:35,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-11-26 12:01:35,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:35,989 INFO L225 Difference]: With dead ends: 350 [2023-11-26 12:01:35,989 INFO L226 Difference]: Without dead ends: 179 [2023-11-26 12:01:35,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:35,996 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 1 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:35,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 170 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:36,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-26 12:01:36,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2023-11-26 12:01:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 132 states have (on average 1.371212121212121) internal successors, (181), 145 states have internal predecessors, (181), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-26 12:01:36,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 233 transitions. [2023-11-26 12:01:36,020 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 233 transitions. Word has length 35 [2023-11-26 12:01:36,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:36,020 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 233 transitions. [2023-11-26 12:01:36,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:36,021 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 233 transitions. [2023-11-26 12:01:36,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 12:01:36,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:36,022 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:36,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:01:36,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:36,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:36,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1036105941, now seen corresponding path program 1 times [2023-11-26 12:01:36,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:36,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081293153] [2023-11-26 12:01:36,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:36,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:01:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 12:01:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:36,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:36,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081293153] [2023-11-26 12:01:36,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081293153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:36,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:36,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:01:36,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786233304] [2023-11-26 12:01:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:36,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:01:36,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:01:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:36,108 INFO L87 Difference]: Start difference. First operand 177 states and 233 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:36,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:36,241 INFO L93 Difference]: Finished difference Result 383 states and 513 transitions. [2023-11-26 12:01:36,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 12:01:36,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-11-26 12:01:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:36,244 INFO L225 Difference]: With dead ends: 383 [2023-11-26 12:01:36,244 INFO L226 Difference]: Without dead ends: 208 [2023-11-26 12:01:36,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:01:36,246 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 91 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:36,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 259 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:36,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-26 12:01:36,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 181. [2023-11-26 12:01:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 136 states have (on average 1.3602941176470589) internal successors, (185), 149 states have internal predecessors, (185), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-26 12:01:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 237 transitions. [2023-11-26 12:01:36,263 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 237 transitions. Word has length 35 [2023-11-26 12:01:36,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:36,264 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 237 transitions. [2023-11-26 12:01:36,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 237 transitions. [2023-11-26 12:01:36,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 12:01:36,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:36,266 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:36,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:01:36,266 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:36,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:36,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1670513453, now seen corresponding path program 1 times [2023-11-26 12:01:36,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:36,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95253754] [2023-11-26 12:01:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:36,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:01:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 12:01:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:36,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:36,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95253754] [2023-11-26 12:01:36,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95253754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:36,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:36,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:36,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000795302] [2023-11-26 12:01:36,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:36,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:36,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:36,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:36,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:36,361 INFO L87 Difference]: Start difference. First operand 181 states and 237 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:36,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:36,445 INFO L93 Difference]: Finished difference Result 513 states and 699 transitions. [2023-11-26 12:01:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:36,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-11-26 12:01:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:36,457 INFO L225 Difference]: With dead ends: 513 [2023-11-26 12:01:36,457 INFO L226 Difference]: Without dead ends: 334 [2023-11-26 12:01:36,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:36,460 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 45 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:36,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 122 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:36,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-11-26 12:01:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 332. [2023-11-26 12:01:36,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 247 states have (on average 1.3481781376518218) internal successors, (333), 264 states have internal predecessors, (333), 48 states have call successors, (48), 40 states have call predecessors, (48), 36 states have return successors, (60), 44 states have call predecessors, (60), 48 states have call successors, (60) [2023-11-26 12:01:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 441 transitions. [2023-11-26 12:01:36,498 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 441 transitions. Word has length 35 [2023-11-26 12:01:36,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:36,499 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 441 transitions. [2023-11-26 12:01:36,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 441 transitions. [2023-11-26 12:01:36,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 12:01:36,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:36,505 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:36,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:01:36,506 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:36,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:36,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2099950073, now seen corresponding path program 1 times [2023-11-26 12:01:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:36,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063289803] [2023-11-26 12:01:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:36,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 12:01:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:01:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 12:01:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:36,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:36,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063289803] [2023-11-26 12:01:36,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063289803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:36,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:36,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:01:36,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523324898] [2023-11-26 12:01:36,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:36,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:01:36,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:36,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:01:36,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:01:36,664 INFO L87 Difference]: Start difference. First operand 332 states and 441 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:36,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:36,950 INFO L93 Difference]: Finished difference Result 880 states and 1209 transitions. [2023-11-26 12:01:36,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:01:36,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2023-11-26 12:01:36,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:36,955 INFO L225 Difference]: With dead ends: 880 [2023-11-26 12:01:36,955 INFO L226 Difference]: Without dead ends: 550 [2023-11-26 12:01:36,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:01:36,958 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 149 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:36,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 245 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:36,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-26 12:01:37,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 537. [2023-11-26 12:01:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 405 states have (on average 1.3111111111111111) internal successors, (531), 437 states have internal predecessors, (531), 72 states have call successors, (72), 55 states have call predecessors, (72), 59 states have return successors, (113), 68 states have call predecessors, (113), 72 states have call successors, (113) [2023-11-26 12:01:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 716 transitions. [2023-11-26 12:01:37,020 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 716 transitions. Word has length 39 [2023-11-26 12:01:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:37,021 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 716 transitions. [2023-11-26 12:01:37,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 716 transitions. [2023-11-26 12:01:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 12:01:37,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:37,024 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 12:01:37,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:01:37,025 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:37,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:37,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1877758216, now seen corresponding path program 1 times [2023-11-26 12:01:37,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:37,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634784305] [2023-11-26 12:01:37,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:37,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 12:01:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 12:01:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:01:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 12:01:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 12:01:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:01:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:01:37,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:37,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634784305] [2023-11-26 12:01:37,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634784305] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:37,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367522784] [2023-11-26 12:01:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:37,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:37,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:37,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:37,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:01:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 12:01:37,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:37,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:01:37,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367522784] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:37,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:37,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 14 [2023-11-26 12:01:37,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87254972] [2023-11-26 12:01:37,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:37,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 12:01:37,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:37,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 12:01:37,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:01:37,793 INFO L87 Difference]: Start difference. First operand 537 states and 716 transitions. Second operand has 14 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-26 12:01:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:39,028 INFO L93 Difference]: Finished difference Result 1092 states and 1492 transitions. [2023-11-26 12:01:39,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-26 12:01:39,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 65 [2023-11-26 12:01:39,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:39,030 INFO L225 Difference]: With dead ends: 1092 [2023-11-26 12:01:39,030 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:01:39,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 145 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=390, Invalid=1502, Unknown=0, NotChecked=0, Total=1892 [2023-11-26 12:01:39,036 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 336 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:39,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 832 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:01:39,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:01:39,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:01:39,037 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) [2023-11-26 12:01:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:01:39,038 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2023-11-26 12:01:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:39,038 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:01:39,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-26 12:01:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:01:39,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:01:39,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:01:39,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:39,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 12:01:39,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:01:40,939 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 556 562) no Hoare annotation was computed. [2023-11-26 12:01:40,939 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 556 562) the Hoare annotation is: true [2023-11-26 12:01:40,940 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 83 94) the Hoare annotation is: true [2023-11-26 12:01:40,940 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2023-11-26 12:01:40,940 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2023-11-26 12:01:40,940 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 831 860) no Hoare annotation was computed. [2023-11-26 12:01:40,940 INFO L899 garLoopResultBuilder]: For program point L856(lines 831 860) no Hoare annotation was computed. [2023-11-26 12:01:40,940 INFO L899 garLoopResultBuilder]: For program point L852(line 852) no Hoare annotation was computed. [2023-11-26 12:01:40,940 INFO L899 garLoopResultBuilder]: For program point L845(lines 845 849) no Hoare annotation was computed. [2023-11-26 12:01:40,941 INFO L902 garLoopResultBuilder]: At program point L845-1(lines 845 849) the Hoare annotation is: true [2023-11-26 12:01:40,941 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 831 860) the Hoare annotation is: true [2023-11-26 12:01:40,941 INFO L902 garLoopResultBuilder]: At program point L841-2(lines 841 855) the Hoare annotation is: true [2023-11-26 12:01:40,941 INFO L902 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: true [2023-11-26 12:01:40,941 INFO L899 garLoopResultBuilder]: For program point L837-1(line 837) no Hoare annotation was computed. [2023-11-26 12:01:40,941 INFO L899 garLoopResultBuilder]: For program point L543-1(lines 543 549) no Hoare annotation was computed. [2023-11-26 12:01:40,941 INFO L899 garLoopResultBuilder]: For program point L605(lines 605 611) no Hoare annotation was computed. [2023-11-26 12:01:40,941 INFO L899 garLoopResultBuilder]: For program point L572(lines 572 580) no Hoare annotation was computed. [2023-11-26 12:01:40,942 INFO L899 garLoopResultBuilder]: For program point L605-2(lines 598 614) no Hoare annotation was computed. [2023-11-26 12:01:40,942 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 585) no Hoare annotation was computed. [2023-11-26 12:01:40,942 INFO L899 garLoopResultBuilder]: For program point L688(lines 688 692) no Hoare annotation was computed. [2023-11-26 12:01:40,942 INFO L899 garLoopResultBuilder]: For program point L688-2(lines 688 692) no Hoare annotation was computed. [2023-11-26 12:01:40,942 INFO L899 garLoopResultBuilder]: For program point L969(lines 969 975) no Hoare annotation was computed. [2023-11-26 12:01:40,942 INFO L899 garLoopResultBuilder]: For program point L932(line 932) no Hoare annotation was computed. [2023-11-26 12:01:40,942 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 136 149) no Hoare annotation was computed. [2023-11-26 12:01:40,942 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 542) no Hoare annotation was computed. [2023-11-26 12:01:40,943 INFO L899 garLoopResultBuilder]: For program point L536-2(lines 532 554) no Hoare annotation was computed. [2023-11-26 12:01:40,943 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2023-11-26 12:01:40,943 INFO L895 garLoopResultBuilder]: At program point L966(line 966) the Hoare annotation is: (let ((.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse4 (<= ~waterLevel~0 1)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (and (<= 1 ~pumpRunning~0) (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse4 .cse1) (or (and (= ~pumpRunning~0 0) .cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) .cse3) (or (not (= |old(~waterLevel~0)| 2)) .cse1 .cse2))) [2023-11-26 12:01:40,943 INFO L899 garLoopResultBuilder]: For program point L966-1(line 966) no Hoare annotation was computed. [2023-11-26 12:01:40,944 INFO L895 garLoopResultBuilder]: At program point L578(line 578) the Hoare annotation is: (let ((.cse0 (< |old(~pumpRunning~0)| 1)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1) (or (not (= |old(~waterLevel~0)| 2)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= |timeShift_processEnvironment_~tmp~3#1| 0))))) [2023-11-26 12:01:40,944 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 529 555) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (< |old(~pumpRunning~0)| 1)) (.cse2 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 (and .cse1 .cse2 .cse3) .cse4) (or (and .cse1 (= 2 ~waterLevel~0) .cse2) (not (= |old(~waterLevel~0)| 2)) .cse0) (or (and (= ~pumpRunning~0 0) .cse2 .cse3) (not (= |old(~pumpRunning~0)| 0)) .cse4))) [2023-11-26 12:01:40,944 INFO L895 garLoopResultBuilder]: At program point L583(line 583) the Hoare annotation is: (let ((.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (and (<= 1 ~pumpRunning~0) (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse0 (<= ~waterLevel~0 1) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse3) (or (not (= |old(~waterLevel~0)| 2)) .cse1 .cse2))) [2023-11-26 12:01:40,944 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 564 588) no Hoare annotation was computed. [2023-11-26 12:01:40,945 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2023-11-26 12:01:40,945 INFO L899 garLoopResultBuilder]: For program point L63-2(lines 59 70) no Hoare annotation was computed. [2023-11-26 12:01:40,945 INFO L895 garLoopResultBuilder]: At program point L951(line 951) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (< |old(~pumpRunning~0)| 1)) (.cse2 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 (and .cse1 .cse2 .cse3) .cse4) (or (and .cse1 (= 2 ~waterLevel~0) .cse2) (not (= |old(~waterLevel~0)| 2)) .cse0) (or (and (= ~pumpRunning~0 0) .cse2 .cse3) (not (= |old(~pumpRunning~0)| 0)) .cse4))) [2023-11-26 12:01:40,945 INFO L899 garLoopResultBuilder]: For program point L951-1(line 951) no Hoare annotation was computed. [2023-11-26 12:01:40,945 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 529 555) no Hoare annotation was computed. [2023-11-26 12:01:40,946 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 932) no Hoare annotation was computed. [2023-11-26 12:01:40,946 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 978) no Hoare annotation was computed. [2023-11-26 12:01:40,946 INFO L899 garLoopResultBuilder]: For program point L964(lines 964 981) no Hoare annotation was computed. [2023-11-26 12:01:40,946 INFO L899 garLoopResultBuilder]: For program point L964-1(lines 956 984) no Hoare annotation was computed. [2023-11-26 12:01:40,946 INFO L895 garLoopResultBuilder]: At program point L783(lines 732 784) the Hoare annotation is: false [2023-11-26 12:01:40,946 INFO L899 garLoopResultBuilder]: For program point L771(lines 771 777) no Hoare annotation was computed. [2023-11-26 12:01:40,946 INFO L895 garLoopResultBuilder]: At program point L771-2(lines 763 778) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= ~waterLevel~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and .cse3 .cse4 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse4 .cse2))) [2023-11-26 12:01:40,947 INFO L899 garLoopResultBuilder]: For program point L734(lines 733 782) no Hoare annotation was computed. [2023-11-26 12:01:40,947 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 778) no Hoare annotation was computed. [2023-11-26 12:01:40,947 INFO L895 garLoopResultBuilder]: At program point L755(line 755) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= ~waterLevel~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and .cse3 .cse4 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse4 .cse2))) [2023-11-26 12:01:40,947 INFO L895 garLoopResultBuilder]: At program point L780(lines 733 782) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= ~waterLevel~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and .cse3 .cse4 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse4 .cse2))) [2023-11-26 12:01:40,947 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 749) no Hoare annotation was computed. [2023-11-26 12:01:40,947 INFO L899 garLoopResultBuilder]: For program point L743-1(lines 743 749) no Hoare annotation was computed. [2023-11-26 12:01:40,948 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:01:40,948 INFO L899 garLoopResultBuilder]: For program point L702(lines 702 708) no Hoare annotation was computed. [2023-11-26 12:01:40,948 INFO L899 garLoopResultBuilder]: For program point L702-2(lines 702 708) no Hoare annotation was computed. [2023-11-26 12:01:40,948 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:01:40,948 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 921) no Hoare annotation was computed. [2023-11-26 12:01:40,948 INFO L899 garLoopResultBuilder]: For program point L786(lines 723 790) no Hoare annotation was computed. [2023-11-26 12:01:40,948 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 759) no Hoare annotation was computed. [2023-11-26 12:01:40,948 INFO L899 garLoopResultBuilder]: For program point L753-1(lines 753 759) no Hoare annotation was computed. [2023-11-26 12:01:40,949 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 921) no Hoare annotation was computed. [2023-11-26 12:01:40,949 INFO L895 garLoopResultBuilder]: At program point L745(line 745) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= ~waterLevel~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and .cse3 .cse4 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse4 .cse2))) [2023-11-26 12:01:40,949 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2023-11-26 12:01:40,949 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2023-11-26 12:01:40,949 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 71 82) the Hoare annotation is: (let ((.cse3 (< ~pumpRunning~0 1)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 (< ~switchedOnBeforeTS~0 1) .cse4 (< 2 |old(~waterLevel~0)|)) (or .cse3 .cse1 .cse2) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse4))) [2023-11-26 12:01:40,950 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 634 642) no Hoare annotation was computed. [2023-11-26 12:01:40,950 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 634 642) the Hoare annotation is: true [2023-11-26 12:01:40,959 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:40,961 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:01:40,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:01:40 BoogieIcfgContainer [2023-11-26 12:01:40,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:01:40,978 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:01:40,978 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:01:40,978 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:01:40,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:33" (3/4) ... [2023-11-26 12:01:40,981 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:01:40,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-26 12:01:40,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-26 12:01:40,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-26 12:01:40,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-26 12:01:40,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-26 12:01:40,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-26 12:01:40,999 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-26 12:01:41,000 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 12:01:41,001 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 12:01:41,001 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:01:41,002 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:01:41,148 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:01:41,148 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:01:41,149 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:01:41,149 INFO L158 Benchmark]: Toolchain (without parser) took 8592.54ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 119.7MB in the beginning and 167.8MB in the end (delta: -48.0MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-11-26 12:01:41,149 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:01:41,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.87ms. Allocated memory is still 148.9MB. Free memory was 119.7MB in the beginning and 100.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:01:41,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.08ms. Allocated memory is still 148.9MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:01:41,151 INFO L158 Benchmark]: Boogie Preprocessor took 75.65ms. Allocated memory is still 148.9MB. Free memory was 97.9MB in the beginning and 95.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:01:41,151 INFO L158 Benchmark]: RCFGBuilder took 713.08ms. Allocated memory is still 148.9MB. Free memory was 95.2MB in the beginning and 117.5MB in the end (delta: -22.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-26 12:01:41,152 INFO L158 Benchmark]: TraceAbstraction took 7025.22ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 116.6MB in the beginning and 175.1MB in the end (delta: -58.5MB). Peak memory consumption was 131.0MB. Max. memory is 16.1GB. [2023-11-26 12:01:41,152 INFO L158 Benchmark]: Witness Printer took 170.61ms. Allocated memory is still 218.1MB. Free memory was 175.1MB in the beginning and 167.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 12:01:41,154 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.87ms. Allocated memory is still 148.9MB. Free memory was 119.7MB in the beginning and 100.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.08ms. Allocated memory is still 148.9MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.65ms. Allocated memory is still 148.9MB. Free memory was 97.9MB in the beginning and 95.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 713.08ms. Allocated memory is still 148.9MB. Free memory was 95.2MB in the beginning and 117.5MB in the end (delta: -22.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7025.22ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 116.6MB in the beginning and 175.1MB in the end (delta: -58.5MB). Peak memory consumption was 131.0MB. Max. memory is 16.1GB. * Witness Printer took 170.61ms. Allocated memory is still 218.1MB. Free memory was 175.1MB in the beginning and 167.8MB 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] - GenericResultAtLocation [Line: 516]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [516] - GenericResultAtLocation [Line: 721]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [721] - GenericResultAtLocation [Line: 791]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [791] - GenericResultAtLocation [Line: 829]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [829] - GenericResultAtLocation [Line: 927]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] - GenericResultAtLocation [Line: 936]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [936] * 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: 932]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 827 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 806 mSDsluCounter, 2299 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1577 mSDsCounter, 156 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1340 IncrementalHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 156 mSolverCounterUnsat, 722 mSDtfsCounter, 1340 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 202 SyntacticMatches, 4 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=537occurred in iteration=9, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 54 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 615 PreInvPairs, 733 NumberOfFragments, 513 HoareAnnotationTreeSize, 615 FomulaSimplifications, 887 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 18 FomulaSimplificationsInter, 3761 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 456 ConstructedInterpolants, 0 QuantifiedInterpolants, 849 SizeOfPredicates, 3 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 72/87 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: 733]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0)) || (((1 <= pumpRunning) && (2 == waterLevel)) && (splverifierCounter == 0))) || ((((1 <= pumpRunning) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0))) - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-26 12:01:41,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc73072-4876-4fa2-a9de-b7f8d4b2c73c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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