./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 471ad46a1662a2ee36763023473e29e175f1086d40bbf36d792af661871bf09e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:25:36,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:25:36,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:25:36,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:25:36,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:25:36,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:25:36,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:25:36,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:25:36,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:25:36,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:25:36,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:25:36,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:25:36,226 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:25:36,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:25:36,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:25:36,229 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:25:36,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:25:36,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:25:36,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:25:36,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:25:36,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:25:36,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:25:36,234 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:25:36,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:25:36,235 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:25:36,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:25:36,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:25:36,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:25:36,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:36,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:25:36,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:25:36,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:25:36,240 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:25:36,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:25:36,241 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:25:36,241 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:25:36,241 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:25:36,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:25:36,242 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:25:36,242 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_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 471ad46a1662a2ee36763023473e29e175f1086d40bbf36d792af661871bf09e [2023-11-12 02:25:36,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:25:36,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:25:36,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:25:36,619 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:25:36,620 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:25:36,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2023-11-12 02:25:39,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:25:39,971 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:25:39,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2023-11-12 02:25:39,991 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/data/7545758ef/9e3c2f1534414772b8aab626740b7c5a/FLAGf212fe748 [2023-11-12 02:25:40,011 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/data/7545758ef/9e3c2f1534414772b8aab626740b7c5a [2023-11-12 02:25:40,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:25:40,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:25:40,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:40,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:25:40,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:25:40,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2b7e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40, skipping insertion in model container [2023-11-12 02:25:40,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:25:40,296 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_062c6756-5dfb-4a91-87b3-a9452259ce02/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c[1605,1618] [2023-11-12 02:25:40,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:40,425 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:25:40,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-12 02:25:40,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] [2023-11-12 02:25:40,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [133] [2023-11-12 02:25:40,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [335] [2023-11-12 02:25:40,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [373] [2023-11-12 02:25:40,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [471] [2023-11-12 02:25:40,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [510] [2023-11-12 02:25:40,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [605] [2023-11-12 02:25:40,450 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_062c6756-5dfb-4a91-87b3-a9452259ce02/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c[1605,1618] [2023-11-12 02:25:40,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:40,569 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:25:40,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40 WrapperNode [2023-11-12 02:25:40,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:40,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:40,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:25:40,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:25:40,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,620 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 199 [2023-11-12 02:25:40,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:40,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:25:40,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:25:40,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:25:40,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:25:40,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:25:40,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:25:40,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:25:40,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (1/1) ... [2023-11-12 02:25:40,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:40,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:40,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:25:40,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:25:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:25:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:25:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:25:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-12 02:25:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-12 02:25:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:25:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:25:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:25:40,805 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:25:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:25:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:25:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:25:40,809 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:25:40,809 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:25:40,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:25:40,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:25:40,962 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:25:40,965 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:25:41,244 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:25:41,251 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:25:41,254 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:25:41,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:41 BoogieIcfgContainer [2023-11-12 02:25:41,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:25:41,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:25:41,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:25:41,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:25:41,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:25:40" (1/3) ... [2023-11-12 02:25:41,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a1dae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:41, skipping insertion in model container [2023-11-12 02:25:41,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:40" (2/3) ... [2023-11-12 02:25:41,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a1dae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:41, skipping insertion in model container [2023-11-12 02:25:41,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:41" (3/3) ... [2023-11-12 02:25:41,273 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2023-11-12 02:25:41,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:25:41,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:25:41,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:25:41,369 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;@48d93ad2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:25:41,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:25:41,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 74 states have internal predecessors, (94), 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) [2023-11-12 02:25:41,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:25:41,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:41,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:41,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:41,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:41,397 INFO L85 PathProgramCache]: Analyzing trace with hash -276262322, now seen corresponding path program 1 times [2023-11-12 02:25:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:41,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328160346] [2023-11-12 02:25:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:25:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:41,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:41,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328160346] [2023-11-12 02:25:41,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328160346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:41,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:41,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:25:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61931875] [2023-11-12 02:25:41,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:41,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:25:41,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:41,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:25:41,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:25:41,716 INFO L87 Difference]: Start difference. First operand has 86 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 74 states have internal predecessors, (94), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:25:41,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:41,750 INFO L93 Difference]: Finished difference Result 163 states and 222 transitions. [2023-11-12 02:25:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:25:41,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-12 02:25:41,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:41,762 INFO L225 Difference]: With dead ends: 163 [2023-11-12 02:25:41,762 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 02:25:41,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:25:41,771 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:41,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 02:25:41,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 02:25:41,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 66 states have internal predecessors, (80), 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) [2023-11-12 02:25:41,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2023-11-12 02:25:41,821 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 25 [2023-11-12 02:25:41,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:41,822 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2023-11-12 02:25:41,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:25:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2023-11-12 02:25:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 02:25:41,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:41,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:41,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:25:41,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:41,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:41,827 INFO L85 PathProgramCache]: Analyzing trace with hash 174267448, now seen corresponding path program 1 times [2023-11-12 02:25:41,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:41,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172049954] [2023-11-12 02:25:41,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:41,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:25:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:41,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:41,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172049954] [2023-11-12 02:25:41,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172049954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:41,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:41,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:25:41,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612695289] [2023-11-12 02:25:41,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:41,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:41,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:41,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:41,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:41,935 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:25:41,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:41,953 INFO L93 Difference]: Finished difference Result 114 states and 147 transitions. [2023-11-12 02:25:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:41,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-12 02:25:41,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:41,956 INFO L225 Difference]: With dead ends: 114 [2023-11-12 02:25:41,956 INFO L226 Difference]: Without dead ends: 68 [2023-11-12 02:25:41,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:41,959 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 18 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:41,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 150 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:41,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-12 02:25:41,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-12 02:25:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 60 states have internal predecessors, (73), 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) [2023-11-12 02:25:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2023-11-12 02:25:41,970 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 26 [2023-11-12 02:25:41,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:41,971 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2023-11-12 02:25:41,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:25:41,971 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2023-11-12 02:25:41,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-12 02:25:41,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:41,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:41,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:25:41,974 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:41,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:41,974 INFO L85 PathProgramCache]: Analyzing trace with hash -2461694, now seen corresponding path program 1 times [2023-11-12 02:25:41,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:41,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297754869] [2023-11-12 02:25:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:41,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:25:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:42,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:42,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297754869] [2023-11-12 02:25:42,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297754869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:42,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:42,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:25:42,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116585725] [2023-11-12 02:25:42,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:42,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:25:42,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:42,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:25:42,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:25:42,132 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:25:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:42,232 INFO L93 Difference]: Finished difference Result 168 states and 220 transitions. [2023-11-12 02:25:42,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:25:42,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2023-11-12 02:25:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:42,236 INFO L225 Difference]: With dead ends: 168 [2023-11-12 02:25:42,236 INFO L226 Difference]: Without dead ends: 108 [2023-11-12 02:25:42,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:25:42,238 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 157 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:42,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 297 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:42,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-12 02:25:42,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2023-11-12 02:25:42,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.353658536585366) internal successors, (111), 89 states have internal predecessors, (111), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-12 02:25:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 134 transitions. [2023-11-12 02:25:42,285 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 134 transitions. Word has length 31 [2023-11-12 02:25:42,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:42,285 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 134 transitions. [2023-11-12 02:25:42,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:25:42,286 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 134 transitions. [2023-11-12 02:25:42,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:25:42,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:42,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:42,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:25:42,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:42,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1429569393, now seen corresponding path program 1 times [2023-11-12 02:25:42,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:42,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248800451] [2023-11-12 02:25:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:42,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:25:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:42,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:42,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248800451] [2023-11-12 02:25:42,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248800451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:42,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:42,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:25:42,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065507562] [2023-11-12 02:25:42,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:42,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:25:42,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:25:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:25:42,488 INFO L87 Difference]: Start difference. First operand 103 states and 134 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:25:42,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:42,565 INFO L93 Difference]: Finished difference Result 241 states and 320 transitions. [2023-11-12 02:25:42,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:25:42,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-11-12 02:25:42,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:42,569 INFO L225 Difference]: With dead ends: 241 [2023-11-12 02:25:42,569 INFO L226 Difference]: Without dead ends: 146 [2023-11-12 02:25:42,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:25:42,573 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 53 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:42,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 300 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:42,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-12 02:25:42,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 139. [2023-11-12 02:25:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 118 states have internal predecessors, (141), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (19), 15 states have call predecessors, (19), 15 states have call successors, (19) [2023-11-12 02:25:42,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 175 transitions. [2023-11-12 02:25:42,606 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 175 transitions. Word has length 34 [2023-11-12 02:25:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:42,607 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 175 transitions. [2023-11-12 02:25:42,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:25:42,609 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 175 transitions. [2023-11-12 02:25:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:25:42,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:42,615 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:42,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:25:42,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:42,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:42,621 INFO L85 PathProgramCache]: Analyzing trace with hash -925495430, now seen corresponding path program 1 times [2023-11-12 02:25:42,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:42,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282135507] [2023-11-12 02:25:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:42,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:25:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:25:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:25:42,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:42,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282135507] [2023-11-12 02:25:42,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282135507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:42,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:42,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:25:42,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58043824] [2023-11-12 02:25:42,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:42,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:25:42,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:42,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:25:42,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:25:42,765 INFO L87 Difference]: Start difference. First operand 139 states and 175 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:25:42,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:42,819 INFO L93 Difference]: Finished difference Result 285 states and 369 transitions. [2023-11-12 02:25:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:25:42,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 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 48 [2023-11-12 02:25:42,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:42,822 INFO L225 Difference]: With dead ends: 285 [2023-11-12 02:25:42,822 INFO L226 Difference]: Without dead ends: 154 [2023-11-12 02:25:42,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:25:42,826 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 13 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:42,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 368 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-12 02:25:42,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 142. [2023-11-12 02:25:42,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 112 states have (on average 1.2857142857142858) internal successors, (144), 121 states have internal predecessors, (144), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (19), 15 states have call predecessors, (19), 15 states have call successors, (19) [2023-11-12 02:25:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 178 transitions. [2023-11-12 02:25:42,847 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 178 transitions. Word has length 48 [2023-11-12 02:25:42,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:42,847 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 178 transitions. [2023-11-12 02:25:42,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:25:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 178 transitions. [2023-11-12 02:25:42,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-12 02:25:42,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:42,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:42,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:25:42,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:42,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:42,851 INFO L85 PathProgramCache]: Analyzing trace with hash -960355185, now seen corresponding path program 1 times [2023-11-12 02:25:42,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:42,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885103387] [2023-11-12 02:25:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:42,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:25:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:25:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:25:42,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:42,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885103387] [2023-11-12 02:25:42,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885103387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:42,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:42,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:25:42,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289171355] [2023-11-12 02:25:42,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:42,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:42,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:42,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:42,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:42,922 INFO L87 Difference]: Start difference. First operand 142 states and 178 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 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) [2023-11-12 02:25:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:42,956 INFO L93 Difference]: Finished difference Result 278 states and 350 transitions. [2023-11-12 02:25:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:42,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 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 51 [2023-11-12 02:25:42,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:42,960 INFO L225 Difference]: With dead ends: 278 [2023-11-12 02:25:42,960 INFO L226 Difference]: Without dead ends: 144 [2023-11-12 02:25:42,962 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 [2023-11-12 02:25:42,971 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 37 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:42,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 194 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-12 02:25:43,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2023-11-12 02:25:43,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 112 states have (on average 1.2767857142857142) internal successors, (143), 121 states have internal predecessors, (143), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-12 02:25:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 175 transitions. [2023-11-12 02:25:43,005 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 175 transitions. Word has length 51 [2023-11-12 02:25:43,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:43,006 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 175 transitions. [2023-11-12 02:25:43,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 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) [2023-11-12 02:25:43,006 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 175 transitions. [2023-11-12 02:25:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:25:43,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:43,010 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:43,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:25:43,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:43,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:43,012 INFO L85 PathProgramCache]: Analyzing trace with hash -784946820, now seen corresponding path program 1 times [2023-11-12 02:25:43,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:43,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299122949] [2023-11-12 02:25:43,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:43,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:25:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:25:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:25:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:43,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299122949] [2023-11-12 02:25:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299122949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:25:43,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808682997] [2023-11-12 02:25:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:43,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:25:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:43,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:25:43,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:25:43,103 INFO L87 Difference]: Start difference. First operand 142 states and 175 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:25:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:43,136 INFO L93 Difference]: Finished difference Result 292 states and 367 transitions. [2023-11-12 02:25:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:25:43,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 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 48 [2023-11-12 02:25:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:43,142 INFO L225 Difference]: With dead ends: 292 [2023-11-12 02:25:43,142 INFO L226 Difference]: Without dead ends: 158 [2023-11-12 02:25:43,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:25:43,153 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 16 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:43,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 278 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:43,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-12 02:25:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 144. [2023-11-12 02:25:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 123 states have internal predecessors, (145), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-12 02:25:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 177 transitions. [2023-11-12 02:25:43,169 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 177 transitions. Word has length 48 [2023-11-12 02:25:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:43,170 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 177 transitions. [2023-11-12 02:25:43,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:25:43,170 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 177 transitions. [2023-11-12 02:25:43,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:25:43,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:43,172 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:43,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:25:43,172 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:43,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:43,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1138281214, now seen corresponding path program 1 times [2023-11-12 02:25:43,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:43,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89383013] [2023-11-12 02:25:43,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:43,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:25:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:25:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:25:43,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89383013] [2023-11-12 02:25:43,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89383013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:43,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:43,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:25:43,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009209122] [2023-11-12 02:25:43,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:43,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:43,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:43,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:43,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:43,254 INFO L87 Difference]: Start difference. First operand 144 states and 177 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 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) [2023-11-12 02:25:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:43,295 INFO L93 Difference]: Finished difference Result 355 states and 442 transitions. [2023-11-12 02:25:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:43,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 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 48 [2023-11-12 02:25:43,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:43,297 INFO L225 Difference]: With dead ends: 355 [2023-11-12 02:25:43,298 INFO L226 Difference]: Without dead ends: 219 [2023-11-12 02:25:43,298 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 [2023-11-12 02:25:43,299 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 38 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:43,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 158 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:43,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-12 02:25:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-12 02:25:43,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 173 states have (on average 1.2485549132947977) internal successors, (216), 184 states have internal predecessors, (216), 24 states have call successors, (24), 23 states have call predecessors, (24), 21 states have return successors, (26), 22 states have call predecessors, (26), 24 states have call successors, (26) [2023-11-12 02:25:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 266 transitions. [2023-11-12 02:25:43,323 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 266 transitions. Word has length 48 [2023-11-12 02:25:43,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:43,323 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 266 transitions. [2023-11-12 02:25:43,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 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) [2023-11-12 02:25:43,324 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 266 transitions. [2023-11-12 02:25:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 02:25:43,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:43,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:43,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:25:43,325 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:43,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:43,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1635788712, now seen corresponding path program 1 times [2023-11-12 02:25:43,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:43,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392404083] [2023-11-12 02:25:43,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:43,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:25:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-12 02:25:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:43,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:25:43,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:43,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392404083] [2023-11-12 02:25:43,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392404083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:43,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:43,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 02:25:43,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755558110] [2023-11-12 02:25:43,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:43,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:25:43,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:43,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:25:43,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:25:43,559 INFO L87 Difference]: Start difference. First operand 219 states and 266 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:25:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:44,192 INFO L93 Difference]: Finished difference Result 764 states and 959 transitions. [2023-11-12 02:25:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-12 02:25:44,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2023-11-12 02:25:44,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:44,201 INFO L225 Difference]: With dead ends: 764 [2023-11-12 02:25:44,201 INFO L226 Difference]: Without dead ends: 553 [2023-11-12 02:25:44,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122 [2023-11-12 02:25:44,206 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 214 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:44,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 606 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:25:44,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-11-12 02:25:44,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 497. [2023-11-12 02:25:44,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 390 states have (on average 1.2128205128205127) internal successors, (473), 417 states have internal predecessors, (473), 56 states have call successors, (56), 46 states have call predecessors, (56), 50 states have return successors, (75), 52 states have call predecessors, (75), 56 states have call successors, (75) [2023-11-12 02:25:44,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 604 transitions. [2023-11-12 02:25:44,283 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 604 transitions. Word has length 52 [2023-11-12 02:25:44,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:44,284 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 604 transitions. [2023-11-12 02:25:44,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:25:44,284 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 604 transitions. [2023-11-12 02:25:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 02:25:44,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:44,290 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:44,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:25:44,290 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:44,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash 274757549, now seen corresponding path program 1 times [2023-11-12 02:25:44,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:44,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619458916] [2023-11-12 02:25:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:44,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:25:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:25:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:25:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-12 02:25:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:25:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 02:25:44,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:44,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619458916] [2023-11-12 02:25:44,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619458916] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:44,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369909837] [2023-11-12 02:25:44,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:44,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:44,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:44,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:44,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:25:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:25:44,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-12 02:25:45,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:45,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369909837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:45,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:45,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 18 [2023-11-12 02:25:45,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536256183] [2023-11-12 02:25:45,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:45,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:25:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:45,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:25:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:25:45,053 INFO L87 Difference]: Start difference. First operand 497 states and 604 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:25:45,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:45,266 INFO L93 Difference]: Finished difference Result 1006 states and 1225 transitions. [2023-11-12 02:25:45,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:25:45,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 89 [2023-11-12 02:25:45,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:45,274 INFO L225 Difference]: With dead ends: 1006 [2023-11-12 02:25:45,274 INFO L226 Difference]: Without dead ends: 517 [2023-11-12 02:25:45,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:25:45,277 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 64 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:45,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 769 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:25:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-12 02:25:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 489. [2023-11-12 02:25:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 384 states have (on average 1.1979166666666667) internal successors, (460), 411 states have internal predecessors, (460), 55 states have call successors, (55), 46 states have call predecessors, (55), 49 states have return successors, (65), 51 states have call predecessors, (65), 55 states have call successors, (65) [2023-11-12 02:25:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 580 transitions. [2023-11-12 02:25:45,329 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 580 transitions. Word has length 89 [2023-11-12 02:25:45,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:45,330 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 580 transitions. [2023-11-12 02:25:45,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:25:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 580 transitions. [2023-11-12 02:25:45,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 02:25:45,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:45,334 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:45,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:45,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:25:45,541 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:45,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:45,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1365206167, now seen corresponding path program 1 times [2023-11-12 02:25:45,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:45,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157282828] [2023-11-12 02:25:45,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:45,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:25:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:25:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:25:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-12 02:25:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:25:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-12 02:25:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:25:45,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:45,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157282828] [2023-11-12 02:25:45,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157282828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:45,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102579367] [2023-11-12 02:25:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:45,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:45,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:45,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:45,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:25:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:45,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:25:45,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:25:45,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:45,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102579367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:45,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:45,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2023-11-12 02:25:45,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161598733] [2023-11-12 02:25:45,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:45,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:45,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:45,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:25:45,924 INFO L87 Difference]: Start difference. First operand 489 states and 580 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:25:45,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:45,985 INFO L93 Difference]: Finished difference Result 702 states and 846 transitions. [2023-11-12 02:25:45,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:45,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 85 [2023-11-12 02:25:45,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:45,991 INFO L225 Difference]: With dead ends: 702 [2023-11-12 02:25:45,991 INFO L226 Difference]: Without dead ends: 700 [2023-11-12 02:25:45,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:25:45,993 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 45 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:45,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 160 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:45,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-11-12 02:25:46,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 529. [2023-11-12 02:25:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 416 states have (on average 1.2091346153846154) internal successors, (503), 444 states have internal predecessors, (503), 59 states have call successors, (59), 50 states have call predecessors, (59), 53 states have return successors, (73), 55 states have call predecessors, (73), 59 states have call successors, (73) [2023-11-12 02:25:46,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 635 transitions. [2023-11-12 02:25:46,077 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 635 transitions. Word has length 85 [2023-11-12 02:25:46,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:46,079 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 635 transitions. [2023-11-12 02:25:46,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:25:46,079 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 635 transitions. [2023-11-12 02:25:46,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 02:25:46,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:46,089 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:46,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:46,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:25:46,295 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:46,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:46,295 INFO L85 PathProgramCache]: Analyzing trace with hash -556908766, now seen corresponding path program 1 times [2023-11-12 02:25:46,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:46,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615296550] [2023-11-12 02:25:46,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:46,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:25:46,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:25:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:25:46,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:25:46,409 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:25:46,410 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:25:46,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:25:46,415 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:46,419 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:25:46,491 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-12 02:25:46,493 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated [2023-11-12 02:25:46,499 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated [2023-11-12 02:25:46,504 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated [2023-11-12 02:25:46,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:25:46 BoogieIcfgContainer [2023-11-12 02:25:46,530 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:25:46,531 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:25:46,531 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:25:46,531 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:25:46,531 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:41" (3/4) ... [2023-11-12 02:25:46,532 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 02:25:46,553 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-12 02:25:46,555 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated [2023-11-12 02:25:46,558 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated [2023-11-12 02:25:46,561 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated [2023-11-12 02:25:46,636 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:25:46,637 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:25:46,637 INFO L158 Benchmark]: Toolchain (without parser) took 6618.07ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 91.3MB in the beginning and 135.0MB in the end (delta: -43.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-11-12 02:25:46,638 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:25:46,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.70ms. Allocated memory is still 138.4MB. Free memory was 90.8MB in the beginning and 71.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:25:46,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.86ms. Allocated memory is still 138.4MB. Free memory was 71.5MB in the beginning and 69.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:25:46,639 INFO L158 Benchmark]: Boogie Preprocessor took 35.35ms. Allocated memory is still 138.4MB. Free memory was 69.4MB in the beginning and 67.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:25:46,639 INFO L158 Benchmark]: RCFGBuilder took 600.99ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 67.8MB in the beginning and 129.0MB in the end (delta: -61.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2023-11-12 02:25:46,640 INFO L158 Benchmark]: TraceAbstraction took 5266.92ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 128.1MB in the beginning and 143.4MB in the end (delta: -15.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-11-12 02:25:46,640 INFO L158 Benchmark]: Witness Printer took 105.95ms. Allocated memory is still 201.3MB. Free memory was 143.4MB in the beginning and 135.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:25:46,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.70ms. Allocated memory is still 138.4MB. Free memory was 90.8MB in the beginning and 71.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.86ms. Allocated memory is still 138.4MB. Free memory was 71.5MB in the beginning and 69.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.35ms. Allocated memory is still 138.4MB. Free memory was 69.4MB in the beginning and 67.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 600.99ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 67.8MB in the beginning and 129.0MB in the end (delta: -61.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5266.92ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 128.1MB in the beginning and 143.4MB in the end (delta: -15.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Witness Printer took 105.95ms. Allocated memory is still 201.3MB. Free memory was 143.4MB in the beginning and 135.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] - GenericResultAtLocation [Line: 133]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [133] - GenericResultAtLocation [Line: 335]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [335] - GenericResultAtLocation [Line: 373]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [373] - GenericResultAtLocation [Line: 471]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [471] - GenericResultAtLocation [Line: 510]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [510] - GenericResultAtLocation [Line: 605]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [605] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L374] int cleanupTimeShifts = 4; [L472] int methAndRunningLastTime ; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L775] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L449] int retValue_acc ; [L450] int tmp ; [L454] FCALL select_helpers() [L455] FCALL select_features() [L456] CALL, EXPR valid_product() [L365] int retValue_acc ; [L368] retValue_acc = 1 [L369] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L456] RET, EXPR valid_product() [L456] tmp = valid_product() [L458] COND TRUE \read(tmp) [L460] FCALL setup() [L461] CALL runTest() [L442] CALL __utac_acc__Specification2_spec__1() [L477] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L442] RET __utac_acc__Specification2_spec__1() [L443] CALL test() [L66] int splverifierCounter ; [L67] int tmp ; [L68] int tmp___0 ; [L69] int tmp___1 ; [L70] int tmp___2 ; [L73] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L75] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L77] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L83] tmp = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L87] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L87] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L107] CALL startSystem() [L331] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] RET startSystem() [L122] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L150] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE \read(systemActive) [L159] CALL processEnvironment() [L179] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE ! pumpRunning [L184] CALL, EXPR isHighWaterLevel() [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L300] CALL, EXPR isHighWaterSensorDry() [L592] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(waterLevel < 2) [L599] retValue_acc = 0 [L600] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L300] RET, EXPR isHighWaterSensorDry() [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L184] RET, EXPR isHighWaterLevel() [L184] tmp = isHighWaterLevel() [L186] COND TRUE \read(tmp) [L188] CALL activatePump() [L213] int tmp ; [L217] CALL, EXPR isMethaneAlarm() [L238] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L217] RET, EXPR isMethaneAlarm() [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) [L223] CALL activatePump__wrappee__highWaterSensor() [L207] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L223] RET activatePump__wrappee__highWaterSensor() [L188] RET activatePump() [L159] RET processEnvironment() [L165] CALL __utac_acc__Specification2_spec__2() [L482] int tmp ; [L483] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L487] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L487] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L487] tmp = isMethaneLevelCritical() [L489] COND FALSE !(\read(tmp)) [L505] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L165] RET __utac_acc__Specification2_spec__2() [L122] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L75] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L77] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L83] tmp = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-2, waterLevel=2] [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-2, waterLevel=2] [L97] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L542] COND FALSE !(\read(methaneLevelCritical)) [L545] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L97] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-2, waterLevel=2] [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L107] CALL startSystem() [L331] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L107] RET startSystem() [L122] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L150] COND TRUE \read(pumpRunning) [L152] CALL lowerWaterLevel() [L518] COND TRUE waterLevel > 0 [L519] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L152] RET lowerWaterLevel() [L157] COND TRUE \read(systemActive) [L159] CALL processEnvironment() [L179] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L182] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L197] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L159] RET processEnvironment() [L165] CALL __utac_acc__Specification2_spec__2() [L482] int tmp ; [L483] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L487] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L487] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L487] tmp = isMethaneLevelCritical() [L489] COND TRUE \read(tmp) [L491] CALL, EXPR isPumpRunning() [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L491] RET, EXPR isPumpRunning() [L491] tmp___0 = isPumpRunning() [L493] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L494] COND FALSE !(\read(methAndRunningLastTime)) [L499] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L165] RET __utac_acc__Specification2_spec__2() [L122] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=1] [L75] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=1] [L77] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=1] [L83] tmp = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=1] [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-4, waterLevel=1] [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L107] CALL startSystem() [L331] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L107] RET startSystem() [L122] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L150] COND TRUE \read(pumpRunning) [L152] CALL lowerWaterLevel() [L518] COND TRUE waterLevel > 0 [L519] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L152] RET lowerWaterLevel() [L157] COND TRUE \read(systemActive) [L159] CALL processEnvironment() [L179] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L182] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L197] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L159] RET processEnvironment() [L165] CALL __utac_acc__Specification2_spec__2() [L482] int tmp ; [L483] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L487] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L487] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L487] tmp = isMethaneLevelCritical() [L489] COND TRUE \read(tmp) [L491] CALL, EXPR isPumpRunning() [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L491] RET, EXPR isPumpRunning() [L491] tmp___0 = isPumpRunning() [L493] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L494] COND TRUE \read(methAndRunningLastTime) [L496] CALL __automaton_fail() [L54] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 674 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 655 mSDsluCounter, 3388 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2294 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 490 IncrementalHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 1094 mSDtfsCounter, 490 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=529occurred in iteration=11, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 295 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 828 NumberOfCodeBlocks, 828 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 698 ConstructedInterpolants, 0 QuantifiedInterpolants, 1134 SizeOfPredicates, 5 NumberOfNonLiveVariables, 620 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 124/131 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:25:46,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062c6756-5dfb-4a91-87b3-a9452259ce02/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE