./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7291fd5b9449f17989061ec30bdd7b74e8732c40c8095270267a47672f4a66be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:40:39,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:39,141 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:40:39,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:39,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:39,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:39,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:39,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:39,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:40:39,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:40:39,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:39,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:39,196 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:39,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:39,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:40:39,199 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:40:39,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:39,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:40:39,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:39,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:40:39,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:40:39,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:40:39,202 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:40:39,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:39,204 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:39,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:39,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:39,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:40:39,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:39,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:39,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:40:39,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:40:39,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:39,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:40:39,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:40:39,209 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:40:39,210 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:40:39,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:40:39,210 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:40:39,210 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_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7291fd5b9449f17989061ec30bdd7b74e8732c40c8095270267a47672f4a66be [2023-11-19 07:40:39,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:39,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:39,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:39,557 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:39,557 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:39,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2023-11-19 07:40:42,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:43,030 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:43,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2023-11-19 07:40:43,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/data/f7d7c0df7/680cf92787e7489d861e8610d9308e24/FLAG788973b8a [2023-11-19 07:40:43,074 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/data/f7d7c0df7/680cf92787e7489d861e8610d9308e24 [2023-11-19 07:40:43,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:43,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:43,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:43,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:43,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:43,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da212f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43, skipping insertion in model container [2023-11-19 07:40:43,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:43,349 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_ef6ff590-dfbe-44cc-8d73-9320de610258/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c[6254,6267] [2023-11-19 07:40:43,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:43,432 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:43,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2023-11-19 07:40:43,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [78] [2023-11-19 07:40:43,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [188] [2023-11-19 07:40:43,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [290] [2023-11-19 07:40:43,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [325] [2023-11-19 07:40:43,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [393] [2023-11-19 07:40:43,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [402] [2023-11-19 07:40:43,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [609] [2023-11-19 07:40:43,465 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_ef6ff590-dfbe-44cc-8d73-9320de610258/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c[6254,6267] [2023-11-19 07:40:43,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:43,526 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:43,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43 WrapperNode [2023-11-19 07:40:43,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:43,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:43,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:43,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:43,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,576 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 201 [2023-11-19 07:40:43,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:43,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:43,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:43,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:43,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:43,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:43,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:43,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:43,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (1/1) ... [2023-11-19 07:40:43,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:43,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:43,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:43,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:40:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:40:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:40:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:40:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:40:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:40:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 07:40:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 07:40:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:40:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:40:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:40:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:40:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:40:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:40:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:43,814 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:43,816 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:44,203 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:44,220 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:44,220 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:40:44,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:44 BoogieIcfgContainer [2023-11-19 07:40:44,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:44,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:44,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:44,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:44,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:43" (1/3) ... [2023-11-19 07:40:44,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba5e7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:44, skipping insertion in model container [2023-11-19 07:40:44,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:43" (2/3) ... [2023-11-19 07:40:44,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba5e7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:44, skipping insertion in model container [2023-11-19 07:40:44,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:44" (3/3) ... [2023-11-19 07:40:44,239 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2023-11-19 07:40:44,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:44,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:40:44,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:44,341 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;@58be14d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:44,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:40:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 75 states have internal predecessors, (93), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:40:44,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:40:44,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:44,359 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] [2023-11-19 07:40:44,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:44,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:44,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1284973020, now seen corresponding path program 1 times [2023-11-19 07:40:44,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:44,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323073251] [2023-11-19 07:40:44,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:44,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:44,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:40:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:44,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:44,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:44,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323073251] [2023-11-19 07:40:44,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323073251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:44,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:44,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:44,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565654718] [2023-11-19 07:40:44,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:44,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:40:44,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:44,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:40:44,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:40:44,675 INFO L87 Difference]: Start difference. First operand has 87 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 75 states have internal predecessors, (93), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:44,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:44,726 INFO L93 Difference]: Finished difference Result 166 states and 225 transitions. [2023-11-19 07:40:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:40:44,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2023-11-19 07:40:44,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:44,740 INFO L225 Difference]: With dead ends: 166 [2023-11-19 07:40:44,740 INFO L226 Difference]: Without dead ends: 78 [2023-11-19 07:40:44,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:40:44,751 INFO L413 NwaCegarLoop]: 109 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, 109 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:44,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:44,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-19 07:40:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-19 07:40:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 67 states have internal predecessors, (79), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:40:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2023-11-19 07:40:44,809 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 23 [2023-11-19 07:40:44,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:44,810 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2023-11-19 07:40:44,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:44,811 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2023-11-19 07:40:44,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:40:44,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:44,817 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] [2023-11-19 07:40:44,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:40:44,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:44,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:44,819 INFO L85 PathProgramCache]: Analyzing trace with hash -489560550, now seen corresponding path program 1 times [2023-11-19 07:40:44,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:44,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216028379] [2023-11-19 07:40:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:44,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:44,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:40:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:44,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:44,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216028379] [2023-11-19 07:40:44,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216028379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:44,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:44,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:44,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637585872] [2023-11-19 07:40:44,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:44,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:44,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:44,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:44,995 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:45,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:45,034 INFO L93 Difference]: Finished difference Result 121 states and 155 transitions. [2023-11-19 07:40:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:45,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2023-11-19 07:40:45,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:45,037 INFO L225 Difference]: With dead ends: 121 [2023-11-19 07:40:45,037 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 07:40:45,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:45,041 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 13 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:45,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 157 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:45,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 07:40:45,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-19 07:40:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 61 states have internal predecessors, (72), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:40:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2023-11-19 07:40:45,054 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 24 [2023-11-19 07:40:45,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:45,055 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2023-11-19 07:40:45,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:45,056 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2023-11-19 07:40:45,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 07:40:45,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:45,058 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] [2023-11-19 07:40:45,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:40:45,058 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:45,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:45,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1301531266, now seen corresponding path program 1 times [2023-11-19 07:40:45,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:45,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293897813] [2023-11-19 07:40:45,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:45,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:45,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:40:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:45,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:45,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293897813] [2023-11-19 07:40:45,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293897813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:45,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:45,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:45,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940578046] [2023-11-19 07:40:45,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:45,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:45,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:45,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:45,254 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:45,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:45,284 INFO L93 Difference]: Finished difference Result 131 states and 170 transitions. [2023-11-19 07:40:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2023-11-19 07:40:45,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:45,288 INFO L225 Difference]: With dead ends: 131 [2023-11-19 07:40:45,288 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 07:40:45,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:45,297 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:45,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 86 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:45,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 07:40:45,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-19 07:40:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 61 states have internal predecessors, (71), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:40:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2023-11-19 07:40:45,317 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 29 [2023-11-19 07:40:45,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:45,318 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2023-11-19 07:40:45,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2023-11-19 07:40:45,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:40:45,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:45,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:45,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:40:45,321 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:45,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:45,322 INFO L85 PathProgramCache]: Analyzing trace with hash 774759404, now seen corresponding path program 1 times [2023-11-19 07:40:45,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:45,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728483987] [2023-11-19 07:40:45,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:45,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:40:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:40:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:45,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:40:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:45,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:45,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728483987] [2023-11-19 07:40:45,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728483987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:45,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:45,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:40:45,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246692560] [2023-11-19 07:40:45,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:45,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:40:45,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:45,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:45,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:45,529 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:40:45,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:45,802 INFO L93 Difference]: Finished difference Result 203 states and 256 transitions. [2023-11-19 07:40:45,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:40:45,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2023-11-19 07:40:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:45,805 INFO L225 Difference]: With dead ends: 203 [2023-11-19 07:40:45,805 INFO L226 Difference]: Without dead ends: 141 [2023-11-19 07:40:45,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:40:45,808 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 155 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:45,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 263 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:40:45,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-19 07:40:45,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 135. [2023-11-19 07:40:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 111 states have internal predecessors, (131), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2023-11-19 07:40:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2023-11-19 07:40:45,836 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 39 [2023-11-19 07:40:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:45,836 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2023-11-19 07:40:45,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:40:45,837 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2023-11-19 07:40:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:40:45,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:45,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:45,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:40:45,840 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:45,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2013400487, now seen corresponding path program 1 times [2023-11-19 07:40:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:45,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625532534] [2023-11-19 07:40:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:45,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:40:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:40:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:46,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:46,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625532534] [2023-11-19 07:40:46,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625532534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:46,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:46,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:40:46,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556028297] [2023-11-19 07:40:46,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:46,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:40:46,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:46,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:40:46,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:40:46,051 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:40:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:46,292 INFO L93 Difference]: Finished difference Result 271 states and 333 transitions. [2023-11-19 07:40:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:40:46,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2023-11-19 07:40:46,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:46,294 INFO L225 Difference]: With dead ends: 271 [2023-11-19 07:40:46,294 INFO L226 Difference]: Without dead ends: 143 [2023-11-19 07:40:46,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:40:46,297 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 58 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:46,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 338 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:40:46,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-19 07:40:46,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 138. [2023-11-19 07:40:46,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 107 states have (on average 1.2523364485981308) internal successors, (134), 114 states have internal predecessors, (134), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2023-11-19 07:40:46,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2023-11-19 07:40:46,316 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 43 [2023-11-19 07:40:46,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:46,317 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2023-11-19 07:40:46,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:40:46,317 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2023-11-19 07:40:46,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:40:46,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:46,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:46,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:40:46,320 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:46,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:46,320 INFO L85 PathProgramCache]: Analyzing trace with hash 287422103, now seen corresponding path program 1 times [2023-11-19 07:40:46,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:46,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680804097] [2023-11-19 07:40:46,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:46,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:40:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:40:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:46,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:46,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680804097] [2023-11-19 07:40:46,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680804097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:46,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:46,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:40:46,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781165752] [2023-11-19 07:40:46,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:46,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:40:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:46,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:40:46,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:40:46,466 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:40:46,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:46,635 INFO L93 Difference]: Finished difference Result 279 states and 344 transitions. [2023-11-19 07:40:46,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:40:46,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2023-11-19 07:40:46,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:46,638 INFO L225 Difference]: With dead ends: 279 [2023-11-19 07:40:46,638 INFO L226 Difference]: Without dead ends: 148 [2023-11-19 07:40:46,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:40:46,640 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 127 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:46,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 261 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:40:46,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-19 07:40:46,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 140. [2023-11-19 07:40:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 116 states have internal predecessors, (136), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2023-11-19 07:40:46,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2023-11-19 07:40:46,658 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 43 [2023-11-19 07:40:46,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:46,658 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2023-11-19 07:40:46,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:40:46,659 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2023-11-19 07:40:46,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:40:46,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:46,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:46,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:40:46,661 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:46,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:46,661 INFO L85 PathProgramCache]: Analyzing trace with hash -530226347, now seen corresponding path program 1 times [2023-11-19 07:40:46,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:46,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116693535] [2023-11-19 07:40:46,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:46,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:40:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:40:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:46,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:46,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116693535] [2023-11-19 07:40:46,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116693535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:46,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:46,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:40:46,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673476381] [2023-11-19 07:40:46,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:46,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:40:46,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:46,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:46,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:46,779 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:40:47,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:47,004 INFO L93 Difference]: Finished difference Result 396 states and 500 transitions. [2023-11-19 07:40:47,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:40:47,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2023-11-19 07:40:47,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:47,007 INFO L225 Difference]: With dead ends: 396 [2023-11-19 07:40:47,007 INFO L226 Difference]: Without dead ends: 263 [2023-11-19 07:40:47,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:40:47,009 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 191 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:47,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 276 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:40:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-11-19 07:40:47,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 255. [2023-11-19 07:40:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 196 states have (on average 1.239795918367347) internal successors, (243), 207 states have internal predecessors, (243), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (44), 29 states have call predecessors, (44), 29 states have call successors, (44) [2023-11-19 07:40:47,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 316 transitions. [2023-11-19 07:40:47,038 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 316 transitions. Word has length 43 [2023-11-19 07:40:47,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:47,038 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 316 transitions. [2023-11-19 07:40:47,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:40:47,039 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 316 transitions. [2023-11-19 07:40:47,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:40:47,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:47,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:47,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:40:47,041 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:47,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:47,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1371224164, now seen corresponding path program 1 times [2023-11-19 07:40:47,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:47,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960396582] [2023-11-19 07:40:47,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:47,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:40:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:40:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:40:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:47,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:47,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960396582] [2023-11-19 07:40:47,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960396582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:47,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:47,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:40:47,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288021795] [2023-11-19 07:40:47,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:47,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:40:47,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:40:47,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:40:47,198 INFO L87 Difference]: Start difference. First operand 255 states and 316 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:40:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:47,424 INFO L93 Difference]: Finished difference Result 273 states and 337 transitions. [2023-11-19 07:40:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:40:47,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2023-11-19 07:40:47,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:47,430 INFO L225 Difference]: With dead ends: 273 [2023-11-19 07:40:47,430 INFO L226 Difference]: Without dead ends: 271 [2023-11-19 07:40:47,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:40:47,434 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 110 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:47,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 290 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:40:47,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-11-19 07:40:47,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 255. [2023-11-19 07:40:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 196 states have (on average 1.219387755102041) internal successors, (239), 207 states have internal predecessors, (239), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (44), 29 states have call predecessors, (44), 29 states have call successors, (44) [2023-11-19 07:40:47,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 312 transitions. [2023-11-19 07:40:47,479 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 312 transitions. Word has length 45 [2023-11-19 07:40:47,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:47,481 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 312 transitions. [2023-11-19 07:40:47,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:40:47,482 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 312 transitions. [2023-11-19 07:40:47,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 07:40:47,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:47,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:47,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:40:47,485 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:47,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:47,485 INFO L85 PathProgramCache]: Analyzing trace with hash -702494737, now seen corresponding path program 1 times [2023-11-19 07:40:47,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:47,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712707651] [2023-11-19 07:40:47,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:47,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:40:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:40:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:40:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:47,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:47,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712707651] [2023-11-19 07:40:47,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712707651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:47,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:47,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:40:47,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158099080] [2023-11-19 07:40:47,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:47,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:40:47,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:47,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:40:47,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:40:47,669 INFO L87 Difference]: Start difference. First operand 255 states and 312 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:40:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:48,182 INFO L93 Difference]: Finished difference Result 809 states and 1015 transitions. [2023-11-19 07:40:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:40:48,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-19 07:40:48,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:48,190 INFO L225 Difference]: With dead ends: 809 [2023-11-19 07:40:48,190 INFO L226 Difference]: Without dead ends: 561 [2023-11-19 07:40:48,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:40:48,194 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 271 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:48,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 361 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:40:48,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-19 07:40:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 549. [2023-11-19 07:40:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 420 states have (on average 1.1904761904761905) internal successors, (500), 447 states have internal predecessors, (500), 64 states have call successors, (64), 56 states have call predecessors, (64), 64 states have return successors, (103), 64 states have call predecessors, (103), 64 states have call successors, (103) [2023-11-19 07:40:48,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 667 transitions. [2023-11-19 07:40:48,261 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 667 transitions. Word has length 47 [2023-11-19 07:40:48,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:48,262 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 667 transitions. [2023-11-19 07:40:48,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:40:48,262 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 667 transitions. [2023-11-19 07:40:48,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 07:40:48,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:48,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:48,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:40:48,265 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:48,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash -540609749, now seen corresponding path program 1 times [2023-11-19 07:40:48,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:48,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331270197] [2023-11-19 07:40:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:48,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:48,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:48,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:48,337 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:40:48,338 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:40:48,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:40:48,342 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:48,346 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:40:48,399 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-11-19 07:40:48,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:40:48 BoogieIcfgContainer [2023-11-19 07:40:48,415 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:40:48,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:40:48,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:40:48,416 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:40:48,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:44" (3/4) ... [2023-11-19 07:40:48,418 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:40:48,432 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-11-19 07:40:48,481 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:40:48,482 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:40:48,482 INFO L158 Benchmark]: Toolchain (without parser) took 5404.42ms. Allocated memory was 134.2MB in the beginning and 237.0MB in the end (delta: 102.8MB). Free memory was 101.3MB in the beginning and 127.2MB in the end (delta: -25.9MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2023-11-19 07:40:48,483 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:48,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.09ms. Allocated memory is still 134.2MB. Free memory was 101.3MB in the beginning and 81.7MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:40:48,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.04ms. Allocated memory is still 134.2MB. Free memory was 81.7MB in the beginning and 79.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:40:48,484 INFO L158 Benchmark]: Boogie Preprocessor took 31.32ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:48,485 INFO L158 Benchmark]: RCFGBuilder took 617.67ms. Allocated memory is still 134.2MB. Free memory was 77.7MB in the beginning and 61.3MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:40:48,485 INFO L158 Benchmark]: TraceAbstraction took 4185.43ms. Allocated memory was 134.2MB in the beginning and 237.0MB in the end (delta: 102.8MB). Free memory was 60.6MB in the beginning and 131.5MB in the end (delta: -70.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 07:40:48,485 INFO L158 Benchmark]: Witness Printer took 65.97ms. Allocated memory is still 237.0MB. Free memory was 131.5MB in the beginning and 127.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:40:48,487 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.09ms. Allocated memory is still 134.2MB. Free memory was 101.3MB in the beginning and 81.7MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.04ms. Allocated memory is still 134.2MB. Free memory was 81.7MB in the beginning and 79.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.32ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 617.67ms. Allocated memory is still 134.2MB. Free memory was 77.7MB in the beginning and 61.3MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4185.43ms. Allocated memory was 134.2MB in the beginning and 237.0MB in the end (delta: 102.8MB). Free memory was 60.6MB in the beginning and 131.5MB in the end (delta: -70.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 65.97ms. Allocated memory is still 237.0MB. Free memory was 131.5MB in the beginning and 127.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [78] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [188] - GenericResultAtLocation [Line: 290]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [290] - GenericResultAtLocation [Line: 325]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [325] - GenericResultAtLocation [Line: 393]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [393] - GenericResultAtLocation [Line: 402]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [402] - GenericResultAtLocation [Line: 609]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [609] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret4 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: 398]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L405] int pumpRunning = 0; [L406] int systemActive = 1; [L779] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] int retValue_acc ; [L269] int tmp ; [L273] FCALL select_helpers() [L274] FCALL select_features() [L275] CALL, EXPR valid_product() [L317] int retValue_acc ; [L320] retValue_acc = 1 [L321] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L275] RET, EXPR valid_product() [L275] tmp = valid_product() [L277] COND TRUE \read(tmp) [L279] FCALL setup() [L280] CALL runTest() [L259] CALL test() [L328] int splverifierCounter ; [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L332] int tmp___2 ; [L335] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L337] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L339] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L345] tmp = __VERIFIER_nondet_int() [L347] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L349] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L349] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L355] tmp___0 = __VERIFIER_nondet_int() [L357] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L359] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L116] COND FALSE !(\read(methaneLevelCritical)) [L119] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L359] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L365] tmp___2 = __VERIFIER_nondet_int() [L367] COND FALSE !(\read(tmp___2)) [L373] tmp___1 = __VERIFIER_nondet_int() [L375] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L382] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L412] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L419] COND TRUE \read(systemActive) [L421] CALL processEnvironment() [L467] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L470] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L444] COND TRUE ! pumpRunning [L446] CALL, EXPR isHighWaterLevel() [L564] int retValue_acc ; [L565] int tmp ; [L566] int tmp___0 ; [L570] CALL, EXPR isHighWaterSensorDry() [L166] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L169] COND FALSE !(waterLevel < 2) [L173] retValue_acc = 0 [L174] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L570] RET, EXPR isHighWaterSensorDry() [L570] tmp = isHighWaterSensorDry() [L572] COND FALSE !(\read(tmp)) [L575] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L577] retValue_acc = tmp___0 [L578] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L446] RET, EXPR isHighWaterLevel() [L446] tmp = isHighWaterLevel() [L448] COND TRUE \read(tmp) [L450] CALL activatePump() [L495] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L450] RET activatePump() [L485] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L421] RET processEnvironment() [L427] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L59] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) [L63] CALL, EXPR isPumpRunning() [L519] int retValue_acc ; [L522] retValue_acc = pumpRunning [L523] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) [L67] CALL __automaton_fail() [L398] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1018 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 993 mSDsluCounter, 2141 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1347 mSDsCounter, 233 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 837 IncrementalHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 233 mSolverCounterUnsat, 794 mSDtfsCounter, 837 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=549occurred in iteration=9, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 55 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:40:48,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef6ff590-dfbe-44cc-8d73-9320de610258/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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