./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.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_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/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_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/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_a457f7e9-c1d9-4e88-97f7-89e08e4defde/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 e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:15,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:16,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:55:16,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:16,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:16,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:16,061 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:16,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:16,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:16,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:16,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:16,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:16,065 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:16,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:16,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:16,067 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:16,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:16,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:16,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:16,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:16,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:16,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:16,071 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:16,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:16,072 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:16,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:16,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:16,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:16,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:16,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:16,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:16,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:16,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:16,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:16,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:16,078 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:16,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:16,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:16,079 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:16,079 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_a457f7e9-c1d9-4e88-97f7-89e08e4defde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2023-11-19 07:55:16,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:16,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:16,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:16,490 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:16,492 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:16,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2023-11-19 07:55:19,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:19,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:19,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2023-11-19 07:55:19,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/data/497db4897/980d108730af437980f00108fd112f3c/FLAG86597761a [2023-11-19 07:55:19,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/data/497db4897/980d108730af437980f00108fd112f3c [2023-11-19 07:55:20,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:20,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:20,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:20,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:20,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:20,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e34cbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20, skipping insertion in model container [2023-11-19 07:55:20,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,087 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:20,352 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_a457f7e9-c1d9-4e88-97f7-89e08e4defde/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2023-11-19 07:55:20,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:20,373 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:20,384 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-19 07:55:20,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2023-11-19 07:55:20,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] [2023-11-19 07:55:20,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] [2023-11-19 07:55:20,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] [2023-11-19 07:55:20,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] [2023-11-19 07:55:20,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] [2023-11-19 07:55:20,388 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] [2023-11-19 07:55:20,475 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_a457f7e9-c1d9-4e88-97f7-89e08e4defde/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2023-11-19 07:55:20,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:20,527 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:20,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20 WrapperNode [2023-11-19 07:55:20,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:20,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:20,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:20,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:20,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,613 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 233 [2023-11-19 07:55:20,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:20,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:20,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:20,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:20,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:20,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:20,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:20,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:20,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:20,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:20,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:20,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:55:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:55:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:55:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:55:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:55:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:55:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:55:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:55:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:55:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:55:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 07:55:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 07:55:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-19 07:55:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-19 07:55:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 07:55:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 07:55:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:55:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:55:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:20,892 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:20,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:21,284 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:21,294 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:21,294 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:55:21,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:21 BoogieIcfgContainer [2023-11-19 07:55:21,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:21,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:21,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:21,305 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:21,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:20" (1/3) ... [2023-11-19 07:55:21,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f6beba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:21, skipping insertion in model container [2023-11-19 07:55:21,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (2/3) ... [2023-11-19 07:55:21,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f6beba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:21, skipping insertion in model container [2023-11-19 07:55:21,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:21" (3/3) ... [2023-11-19 07:55:21,308 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2023-11-19 07:55:21,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:21,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:55:21,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:21,384 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;@4c2408ca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:21,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:55:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:55:21,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 07:55:21,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:21,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:21,403 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:21,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:21,410 INFO L85 PathProgramCache]: Analyzing trace with hash 836117038, now seen corresponding path program 1 times [2023-11-19 07:55:21,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:21,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468727078] [2023-11-19 07:55:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:21,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:21,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:55:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:55:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:21,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:21,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468727078] [2023-11-19 07:55:21,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468727078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:21,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:21,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:21,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8669577] [2023-11-19 07:55:21,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:21,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:21,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:21,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:21,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:21,672 INFO L87 Difference]: Start difference. First operand has 105 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:21,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:21,713 INFO L93 Difference]: Finished difference Result 201 states and 272 transitions. [2023-11-19 07:55:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:21,716 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-19 07:55:21,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:21,727 INFO L225 Difference]: With dead ends: 201 [2023-11-19 07:55:21,728 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 07:55:21,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:21,737 INFO L413 NwaCegarLoop]: 133 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, 133 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 07:55:21,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:21,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 07:55:21,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-19 07:55:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 80 states have internal predecessors, (93), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:55:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2023-11-19 07:55:21,794 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 32 [2023-11-19 07:55:21,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:21,795 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2023-11-19 07:55:21,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:21,795 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2023-11-19 07:55:21,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 07:55:21,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:21,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:21,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:55:21,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:21,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:21,802 INFO L85 PathProgramCache]: Analyzing trace with hash 485124754, now seen corresponding path program 1 times [2023-11-19 07:55:21,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:21,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702084223] [2023-11-19 07:55:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:21,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:55:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-19 07:55:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:22,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:22,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702084223] [2023-11-19 07:55:22,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702084223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:22,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:22,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:55:22,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130285367] [2023-11-19 07:55:22,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:22,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:22,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:22,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:22,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:22,065 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:55:22,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:22,099 INFO L93 Difference]: Finished difference Result 184 states and 243 transitions. [2023-11-19 07:55:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:22,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-11-19 07:55:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:22,113 INFO L225 Difference]: With dead ends: 184 [2023-11-19 07:55:22,113 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 07:55:22,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:22,118 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 101 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 122 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 07:55:22,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 07:55:22,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-19 07:55:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.295774647887324) internal successors, (92), 80 states have internal predecessors, (92), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:55:22,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 123 transitions. [2023-11-19 07:55:22,155 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 123 transitions. Word has length 37 [2023-11-19 07:55:22,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:22,158 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 123 transitions. [2023-11-19 07:55:22,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:55:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 123 transitions. [2023-11-19 07:55:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 07:55:22,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:22,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:22,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:55:22,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:22,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:22,164 INFO L85 PathProgramCache]: Analyzing trace with hash -384973767, now seen corresponding path program 1 times [2023-11-19 07:55:22,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:22,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920361063] [2023-11-19 07:55:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:22,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:55:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:55:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:55:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:22,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:22,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920361063] [2023-11-19 07:55:22,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920361063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:22,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:22,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:22,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623528548] [2023-11-19 07:55:22,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:22,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:22,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:22,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:22,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:22,315 INFO L87 Difference]: Start difference. First operand 96 states and 123 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:55:22,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:22,450 INFO L93 Difference]: Finished difference Result 174 states and 223 transitions. [2023-11-19 07:55:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:22,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2023-11-19 07:55:22,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:22,452 INFO L225 Difference]: With dead ends: 174 [2023-11-19 07:55:22,453 INFO L226 Difference]: Without dead ends: 104 [2023-11-19 07:55:22,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:22,455 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 72 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:22,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 210 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:55:22,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-19 07:55:22,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2023-11-19 07:55:22,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 74 states have internal predecessors, (85), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:55:22,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions. [2023-11-19 07:55:22,499 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 42 [2023-11-19 07:55:22,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:22,500 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions. [2023-11-19 07:55:22,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:55:22,501 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions. [2023-11-19 07:55:22,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 07:55:22,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:22,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:22,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:55:22,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:22,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:22,512 INFO L85 PathProgramCache]: Analyzing trace with hash 88830114, now seen corresponding path program 1 times [2023-11-19 07:55:22,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:22,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159935449] [2023-11-19 07:55:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:22,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:55:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:55:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:22,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159935449] [2023-11-19 07:55:22,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159935449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:22,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:22,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:22,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428865174] [2023-11-19 07:55:22,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:22,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:22,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:22,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:22,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:22,717 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:55:22,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:22,901 INFO L93 Difference]: Finished difference Result 249 states and 324 transitions. [2023-11-19 07:55:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:55:22,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2023-11-19 07:55:22,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:22,905 INFO L225 Difference]: With dead ends: 249 [2023-11-19 07:55:22,905 INFO L226 Difference]: Without dead ends: 170 [2023-11-19 07:55:22,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:22,907 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 158 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:22,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 226 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:55:22,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-19 07:55:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 164. [2023-11-19 07:55:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 123 states have (on average 1.2845528455284554) internal successors, (158), 131 states have internal predecessors, (158), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2023-11-19 07:55:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 209 transitions. [2023-11-19 07:55:22,936 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 209 transitions. Word has length 46 [2023-11-19 07:55:22,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:22,937 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 209 transitions. [2023-11-19 07:55:22,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:55:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 209 transitions. [2023-11-19 07:55:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 07:55:22,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:22,943 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:22,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:55:22,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:22,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:22,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2065653903, now seen corresponding path program 1 times [2023-11-19 07:55:22,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:22,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503862269] [2023-11-19 07:55:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:22,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:55:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:55:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:23,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503862269] [2023-11-19 07:55:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503862269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:23,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:23,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:55:23,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253025461] [2023-11-19 07:55:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:23,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:55:23,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:23,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:55:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:55:23,153 INFO L87 Difference]: Start difference. First operand 164 states and 209 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:55:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:23,390 INFO L93 Difference]: Finished difference Result 328 states and 426 transitions. [2023-11-19 07:55:23,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:55:23,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-19 07:55:23,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:23,398 INFO L225 Difference]: With dead ends: 328 [2023-11-19 07:55:23,398 INFO L226 Difference]: Without dead ends: 172 [2023-11-19 07:55:23,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:55:23,403 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 70 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:23,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 440 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:55:23,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-19 07:55:23,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2023-11-19 07:55:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 126 states have (on average 1.2777777777777777) internal successors, (161), 134 states have internal predecessors, (161), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2023-11-19 07:55:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 212 transitions. [2023-11-19 07:55:23,444 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 212 transitions. Word has length 56 [2023-11-19 07:55:23,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:23,445 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 212 transitions. [2023-11-19 07:55:23,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:55:23,446 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 212 transitions. [2023-11-19 07:55:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 07:55:23,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:23,448 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:23,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:55:23,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:23,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1642952077, now seen corresponding path program 1 times [2023-11-19 07:55:23,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:23,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988354829] [2023-11-19 07:55:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:55:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:55:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:23,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:23,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988354829] [2023-11-19 07:55:23,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988354829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:23,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:23,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:55:23,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644773410] [2023-11-19 07:55:23,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:23,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:55:23,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:23,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:55:23,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:23,637 INFO L87 Difference]: Start difference. First operand 167 states and 212 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:55:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:23,780 INFO L93 Difference]: Finished difference Result 336 states and 440 transitions. [2023-11-19 07:55:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:55:23,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-19 07:55:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:23,783 INFO L225 Difference]: With dead ends: 336 [2023-11-19 07:55:23,783 INFO L226 Difference]: Without dead ends: 177 [2023-11-19 07:55:23,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:55:23,785 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 73 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:23,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 343 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:55:23,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-19 07:55:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2023-11-19 07:55:23,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 128 states have (on average 1.2734375) internal successors, (163), 136 states have internal predecessors, (163), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2023-11-19 07:55:23,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2023-11-19 07:55:23,805 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 56 [2023-11-19 07:55:23,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:23,805 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2023-11-19 07:55:23,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:55:23,806 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2023-11-19 07:55:23,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 07:55:23,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:23,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:23,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:55:23,807 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:23,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:23,808 INFO L85 PathProgramCache]: Analyzing trace with hash 846576885, now seen corresponding path program 1 times [2023-11-19 07:55:23,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:23,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007925192] [2023-11-19 07:55:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:23,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:55:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:55:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:23,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:23,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007925192] [2023-11-19 07:55:23,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007925192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:23,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:23,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:55:23,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649644500] [2023-11-19 07:55:23,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:23,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:55:23,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:23,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:55:23,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:23,945 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:55:24,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:24,238 INFO L93 Difference]: Finished difference Result 477 states and 626 transitions. [2023-11-19 07:55:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:55:24,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2023-11-19 07:55:24,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:24,244 INFO L225 Difference]: With dead ends: 477 [2023-11-19 07:55:24,244 INFO L226 Difference]: Without dead ends: 316 [2023-11-19 07:55:24,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 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 07:55:24,249 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 234 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:24,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 342 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:55:24,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-19 07:55:24,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 308. [2023-11-19 07:55:24,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 231 states have (on average 1.2467532467532467) internal successors, (288), 243 states have internal predecessors, (288), 40 states have call successors, (40), 33 states have call predecessors, (40), 36 states have return successors, (66), 41 states have call predecessors, (66), 40 states have call successors, (66) [2023-11-19 07:55:24,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 394 transitions. [2023-11-19 07:55:24,318 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 394 transitions. Word has length 56 [2023-11-19 07:55:24,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:24,319 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 394 transitions. [2023-11-19 07:55:24,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:55:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 394 transitions. [2023-11-19 07:55:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:55:24,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:24,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:24,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:55:24,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:24,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:24,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1874240715, now seen corresponding path program 1 times [2023-11-19 07:55:24,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:24,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333602206] [2023-11-19 07:55:24,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:24,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:55:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:55:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:55:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:55:24,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:24,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333602206] [2023-11-19 07:55:24,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333602206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:24,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:24,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:55:24,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238411927] [2023-11-19 07:55:24,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:24,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:55:24,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:24,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:55:24,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:55:24,535 INFO L87 Difference]: Start difference. First operand 308 states and 394 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:55:24,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:24,829 INFO L93 Difference]: Finished difference Result 612 states and 789 transitions. [2023-11-19 07:55:24,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:55:24,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2023-11-19 07:55:24,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:24,834 INFO L225 Difference]: With dead ends: 612 [2023-11-19 07:55:24,834 INFO L226 Difference]: Without dead ends: 312 [2023-11-19 07:55:24,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:55:24,837 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 126 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:24,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 446 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:55:24,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-19 07:55:24,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 304. [2023-11-19 07:55:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 227 states have (on average 1.2158590308370043) internal successors, (276), 239 states have internal predecessors, (276), 40 states have call successors, (40), 33 states have call predecessors, (40), 36 states have return successors, (66), 41 states have call predecessors, (66), 40 states have call successors, (66) [2023-11-19 07:55:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 382 transitions. [2023-11-19 07:55:24,873 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 382 transitions. Word has length 58 [2023-11-19 07:55:24,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:24,873 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 382 transitions. [2023-11-19 07:55:24,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:55:24,874 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 382 transitions. [2023-11-19 07:55:24,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 07:55:24,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:24,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:24,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:55:24,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:24,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:24,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1421347697, now seen corresponding path program 1 times [2023-11-19 07:55:24,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:24,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265725473] [2023-11-19 07:55:24,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:24,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:55:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:55:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:55:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:55:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:25,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:25,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265725473] [2023-11-19 07:55:25,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265725473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:25,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:25,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:55:25,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300435259] [2023-11-19 07:55:25,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:25,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:55:25,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:25,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:55:25,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:55:25,211 INFO L87 Difference]: Start difference. First operand 304 states and 382 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 07:55:25,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:25,970 INFO L93 Difference]: Finished difference Result 920 states and 1203 transitions. [2023-11-19 07:55:25,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-19 07:55:25,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2023-11-19 07:55:25,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:25,978 INFO L225 Difference]: With dead ends: 920 [2023-11-19 07:55:25,978 INFO L226 Difference]: Without dead ends: 679 [2023-11-19 07:55:25,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=549, Unknown=0, NotChecked=0, Total=702 [2023-11-19 07:55:25,982 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 470 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:25,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 527 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:55:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-11-19 07:55:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 585. [2023-11-19 07:55:26,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 437 states have (on average 1.2151029748283753) internal successors, (531), 463 states have internal predecessors, (531), 77 states have call successors, (77), 58 states have call predecessors, (77), 70 states have return successors, (127), 79 states have call predecessors, (127), 77 states have call successors, (127) [2023-11-19 07:55:26,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 735 transitions. [2023-11-19 07:55:26,082 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 735 transitions. Word has length 60 [2023-11-19 07:55:26,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:26,083 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 735 transitions. [2023-11-19 07:55:26,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 07:55:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 735 transitions. [2023-11-19 07:55:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:55:26,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:26,090 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:26,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:55:26,091 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:26,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash 118762499, now seen corresponding path program 1 times [2023-11-19 07:55:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:26,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922376981] [2023-11-19 07:55:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:26,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:55:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:55:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-19 07:55:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:55:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-19 07:55:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:55:26,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:26,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922376981] [2023-11-19 07:55:26,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922376981] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:55:26,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544815133] [2023-11-19 07:55:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:26,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:26,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:26,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:55:26,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:55:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:55:26,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:26,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:55:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 07:55:26,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544815133] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:55:26,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:55:26,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2023-11-19 07:55:26,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022020103] [2023-11-19 07:55:26,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:55:26,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:55:26,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:26,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:55:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:55:26,849 INFO L87 Difference]: Start difference. First operand 585 states and 735 transitions. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-19 07:55:28,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:28,119 INFO L93 Difference]: Finished difference Result 1227 states and 1586 transitions. [2023-11-19 07:55:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-19 07:55:28,120 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 109 [2023-11-19 07:55:28,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:28,125 INFO L225 Difference]: With dead ends: 1227 [2023-11-19 07:55:28,125 INFO L226 Difference]: Without dead ends: 703 [2023-11-19 07:55:28,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 239 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=265, Invalid=925, Unknown=0, NotChecked=0, Total=1190 [2023-11-19 07:55:28,129 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 265 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:28,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 1540 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:55:28,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-11-19 07:55:28,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 641. [2023-11-19 07:55:28,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 475 states have (on average 1.2) internal successors, (570), 507 states have internal predecessors, (570), 86 states have call successors, (86), 71 states have call predecessors, (86), 79 states have return successors, (114), 83 states have call predecessors, (114), 86 states have call successors, (114) [2023-11-19 07:55:28,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 770 transitions. [2023-11-19 07:55:28,203 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 770 transitions. Word has length 109 [2023-11-19 07:55:28,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:28,204 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 770 transitions. [2023-11-19 07:55:28,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-19 07:55:28,204 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 770 transitions. [2023-11-19 07:55:28,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-19 07:55:28,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:28,209 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:28,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:28,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:55:28,425 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:28,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:28,425 INFO L85 PathProgramCache]: Analyzing trace with hash 430860499, now seen corresponding path program 1 times [2023-11-19 07:55:28,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:28,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392300039] [2023-11-19 07:55:28,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:28,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:55:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:55:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:55:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:55:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:55:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:55:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:55:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-19 07:55:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-19 07:55:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-19 07:55:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 96 proven. 7 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-19 07:55:28,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:28,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392300039] [2023-11-19 07:55:28,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392300039] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:55:28,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767489526] [2023-11-19 07:55:28,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:28,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:28,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:28,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:55:28,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:55:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:29,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:55:29,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 143 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-19 07:55:29,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:55:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 77 proven. 39 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-19 07:55:29,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767489526] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:55:29,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:55:29,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 11] total 28 [2023-11-19 07:55:29,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943466687] [2023-11-19 07:55:29,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:55:29,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-19 07:55:29,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:29,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-19 07:55:29,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:55:29,861 INFO L87 Difference]: Start difference. First operand 641 states and 770 transitions. Second operand has 28 states, 28 states have (on average 7.857142857142857) internal successors, (220), 24 states have internal predecessors, (220), 10 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2023-11-19 07:55:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:32,651 INFO L93 Difference]: Finished difference Result 1850 states and 2310 transitions. [2023-11-19 07:55:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-11-19 07:55:32,652 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.857142857142857) internal successors, (220), 24 states have internal predecessors, (220), 10 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) Word has length 187 [2023-11-19 07:55:32,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:32,661 INFO L225 Difference]: With dead ends: 1850 [2023-11-19 07:55:32,662 INFO L226 Difference]: Without dead ends: 1217 [2023-11-19 07:55:32,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 413 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1872 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1304, Invalid=5668, Unknown=0, NotChecked=0, Total=6972 [2023-11-19 07:55:32,668 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1046 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:32,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 1625 Invalid, 3001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2647 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:55:32,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2023-11-19 07:55:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1148. [2023-11-19 07:55:32,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 862 states have (on average 1.1392111368909512) internal successors, (982), 903 states have internal predecessors, (982), 151 states have call successors, (151), 130 states have call predecessors, (151), 134 states have return successors, (188), 143 states have call predecessors, (188), 151 states have call successors, (188) [2023-11-19 07:55:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1321 transitions. [2023-11-19 07:55:32,797 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1321 transitions. Word has length 187 [2023-11-19 07:55:32,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:32,798 INFO L495 AbstractCegarLoop]: Abstraction has 1148 states and 1321 transitions. [2023-11-19 07:55:32,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.857142857142857) internal successors, (220), 24 states have internal predecessors, (220), 10 states have call successors, (34), 8 states have call predecessors, (34), 10 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2023-11-19 07:55:32,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1321 transitions. [2023-11-19 07:55:32,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-19 07:55:32,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:32,806 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:32,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:33,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:33,022 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:33,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:33,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1314092273, now seen corresponding path program 1 times [2023-11-19 07:55:33,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:33,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436024965] [2023-11-19 07:55:33,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:33,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:55:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:55:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:55:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:55:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:55:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:55:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:55:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 07:55:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:55:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:55:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-19 07:55:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-19 07:55:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-19 07:55:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-19 07:55:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 86 proven. 58 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-19 07:55:33,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:33,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436024965] [2023-11-19 07:55:33,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436024965] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:55:33,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479539845] [2023-11-19 07:55:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:33,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:33,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:33,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:55:33,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:55:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:55:33,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:33,897 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 186 proven. 11 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-19 07:55:33,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:55:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 101 proven. 61 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-19 07:55:34,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479539845] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:55:34,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:55:34,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 22 [2023-11-19 07:55:34,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191326505] [2023-11-19 07:55:34,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:55:34,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-19 07:55:34,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:34,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-19 07:55:34,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:55:34,494 INFO L87 Difference]: Start difference. First operand 1148 states and 1321 transitions. Second operand has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) [2023-11-19 07:55:36,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:36,116 INFO L93 Difference]: Finished difference Result 2242 states and 2613 transitions. [2023-11-19 07:55:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-19 07:55:36,117 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) Word has length 207 [2023-11-19 07:55:36,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:36,125 INFO L225 Difference]: With dead ends: 2242 [2023-11-19 07:55:36,125 INFO L226 Difference]: Without dead ends: 1208 [2023-11-19 07:55:36,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=483, Invalid=1869, Unknown=0, NotChecked=0, Total=2352 [2023-11-19 07:55:36,131 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 611 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:36,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 439 Invalid, 1793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:55:36,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2023-11-19 07:55:36,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2023-11-19 07:55:36,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 878 states have (on average 1.1309794988610478) internal successors, (993), 919 states have internal predecessors, (993), 151 states have call successors, (151), 138 states have call predecessors, (151), 142 states have return successors, (188), 143 states have call predecessors, (188), 151 states have call successors, (188) [2023-11-19 07:55:36,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1332 transitions. [2023-11-19 07:55:36,273 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1332 transitions. Word has length 207 [2023-11-19 07:55:36,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:36,273 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1332 transitions. [2023-11-19 07:55:36,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) [2023-11-19 07:55:36,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1332 transitions. [2023-11-19 07:55:36,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-19 07:55:36,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:36,280 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:36,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:36,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:55:36,501 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:36,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:36,501 INFO L85 PathProgramCache]: Analyzing trace with hash -916420892, now seen corresponding path program 1 times [2023-11-19 07:55:36,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:36,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308408446] [2023-11-19 07:55:36,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:36,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:36,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:55:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:36,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:55:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:36,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:36,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:36,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:55:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:55:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:55:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:55:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-19 07:55:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-19 07:55:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:55:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:55:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:55:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-19 07:55:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-19 07:55:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-19 07:55:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:55:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-19 07:55:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 90 proven. 43 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-19 07:55:37,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:37,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308408446] [2023-11-19 07:55:37,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308408446] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:55:37,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481359034] [2023-11-19 07:55:37,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:37,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:37,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:37,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:55:37,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:55:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 07:55:37,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 131 proven. 26 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-19 07:55:37,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:55:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 99 proven. 45 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-19 07:55:38,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481359034] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:55:38,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:55:38,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 13] total 23 [2023-11-19 07:55:38,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066486287] [2023-11-19 07:55:38,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:55:38,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 07:55:38,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 07:55:38,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:55:38,198 INFO L87 Difference]: Start difference. First operand 1172 states and 1332 transitions. Second operand has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) [2023-11-19 07:55:40,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:40,239 INFO L93 Difference]: Finished difference Result 2198 states and 2562 transitions. [2023-11-19 07:55:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-19 07:55:40,240 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) Word has length 208 [2023-11-19 07:55:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:40,241 INFO L225 Difference]: With dead ends: 2198 [2023-11-19 07:55:40,241 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:55:40,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 460 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=895, Invalid=2887, Unknown=0, NotChecked=0, Total=3782 [2023-11-19 07:55:40,250 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 860 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 2041 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 2041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:40,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 494 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 2041 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:55:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:55:40,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:55:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:55:40,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2023-11-19 07:55:40,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:40,252 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:55:40,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) [2023-11-19 07:55:40,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:55:40,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:55:40,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:55:40,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:40,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:55:40,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:55:48,867 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 551 558) no Hoare annotation was computed. [2023-11-19 07:55:48,868 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 551 558) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1)) [2023-11-19 07:55:48,868 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 551 558) no Hoare annotation was computed. [2023-11-19 07:55:48,869 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 458 464) no Hoare annotation was computed. [2023-11-19 07:55:48,869 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 458 464) the Hoare annotation is: true [2023-11-19 07:55:48,869 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 943 954) the Hoare annotation is: (let ((.cse4 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 2 ~waterLevel~0))) (.cse3 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse0 (< ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse3 (< 1 ~waterLevel~0)) (or .cse4 .cse1 .cse2 .cse3) (or (< 2 ~waterLevel~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse1 (< ~switchedOnBeforeTS~0 1)))) [2023-11-19 07:55:48,869 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 943 954) no Hoare annotation was computed. [2023-11-19 07:55:48,869 INFO L899 garLoopResultBuilder]: For program point L947-1(lines 943 954) no Hoare annotation was computed. [2023-11-19 07:55:48,870 INFO L899 garLoopResultBuilder]: For program point L833(line 833) no Hoare annotation was computed. [2023-11-19 07:55:48,870 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 812 841) no Hoare annotation was computed. [2023-11-19 07:55:48,870 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 830) no Hoare annotation was computed. [2023-11-19 07:55:48,870 INFO L902 garLoopResultBuilder]: At program point L826-1(lines 826 830) the Hoare annotation is: true [2023-11-19 07:55:48,870 INFO L899 garLoopResultBuilder]: For program point L823(line 823) no Hoare annotation was computed. [2023-11-19 07:55:48,870 INFO L902 garLoopResultBuilder]: At program point L822-2(lines 822 836) the Hoare annotation is: true [2023-11-19 07:55:48,871 INFO L902 garLoopResultBuilder]: At program point L818(line 818) the Hoare annotation is: true [2023-11-19 07:55:48,871 INFO L899 garLoopResultBuilder]: For program point L818-1(line 818) no Hoare annotation was computed. [2023-11-19 07:55:48,871 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 812 841) the Hoare annotation is: true [2023-11-19 07:55:48,871 INFO L899 garLoopResultBuilder]: For program point L837(lines 812 841) no Hoare annotation was computed. [2023-11-19 07:55:48,871 INFO L899 garLoopResultBuilder]: For program point L923(lines 923 927) no Hoare annotation was computed. [2023-11-19 07:55:48,871 INFO L899 garLoopResultBuilder]: For program point L923-2(lines 919 930) no Hoare annotation was computed. [2023-11-19 07:55:48,872 INFO L895 garLoopResultBuilder]: At program point L791(line 791) the Hoare annotation is: (let ((.cse18 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse14 (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|)) (.cse15 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0)) (.cse9 (= ~waterLevel~0 1)) (.cse13 (not (= |old(~waterLevel~0)| 2))) (.cse17 (< 1 |old(~waterLevel~0)|)) (.cse12 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|)) (.cse7 (= |timeShift_isMethaneAlarm_#res#1| 0)) (.cse16 (<= ~waterLevel~0 0)) (.cse8 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse10 (<= 1 ~switchedOnBeforeTS~0)) (.cse11 (= |timeShift_isMethaneLevelCritical_#res#1| 0)) (.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not .cse18)) (.cse3 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 (< 0 |old(~waterLevel~0)|) .cse2 .cse3) (or .cse1 .cse4 (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse7 .cse9 .cse10 (= |timeShift_getWaterLevel_#res#1| 1) .cse11 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 1)) .cse13 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 (and .cse5 .cse6 .cse8 .cse2 (<= |timeShift_getWaterLevel_#res#1| 1)) (< 2 |old(~waterLevel~0)|)) (or (and .cse14 .cse5 .cse6 .cse15 .cse16 .cse8 .cse10) .cse17 .cse18 .cse0 .cse1 .cse3) (or .cse18 .cse1 (and .cse14 .cse5 .cse6 .cse15 .cse8 .cse9 .cse10) .cse13 .cse3) (or .cse17 (and .cse12 .cse6 .cse7 .cse16 .cse8 .cse10 .cse11) (and .cse5 .cse6 .cse7 .cse16 .cse8 .cse10 .cse11) .cse0 .cse1 .cse4 .cse3)))) [2023-11-19 07:55:48,872 INFO L899 garLoopResultBuilder]: For program point L791-1(line 791) no Hoare annotation was computed. [2023-11-19 07:55:48,872 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 431 457) no Hoare annotation was computed. [2023-11-19 07:55:48,872 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 445 451) no Hoare annotation was computed. [2023-11-19 07:55:48,873 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 987 995) no Hoare annotation was computed. [2023-11-19 07:55:48,873 INFO L895 garLoopResultBuilder]: At program point L532(line 532) the Hoare annotation is: (let ((.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse5 (= |timeShift_isMethaneAlarm_#res#1| 0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse7 (= |timeShift_isMethaneLevelCritical_#res#1| 0)) (.cse8 (< |old(~pumpRunning~0)| 1))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 (<= ~waterLevel~0 0) .cse6 .cse7) .cse8) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 (< 2 |old(~waterLevel~0)|)) (or .cse0 .cse1 (< 0 |old(~waterLevel~0)|) (and .cse2 .cse3 .cse4 .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) .cse6 .cse7) .cse8) (or .cse1 (and .cse2 .cse3 .cse4 .cse5 (= ~waterLevel~0 1) .cse6 .cse7) (not (= |old(~waterLevel~0)| 2)) .cse8))) [2023-11-19 07:55:48,873 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 0))) (let ((.cse5 (< 0 |old(~waterLevel~0)|)) (.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse6 (< 2 |old(~waterLevel~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|)) (.cse10 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0)) (.cse2 (not .cse4)) (.cse11 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse12 (<= 1 ~switchedOnBeforeTS~0))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3 .cse6) (or .cse1 .cse7 .cse3 (= ~waterLevel~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse6) (or .cse0 .cse1 .cse5 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse4 .cse0 .cse1 (and .cse8 .cse9 .cse10 .cse11 (<= ~waterLevel~0 0) .cse12) .cse3 .cse6) (or .cse1 .cse7 .cse3 (and .cse8 .cse9 .cse10 .cse2 .cse11 .cse12))))) [2023-11-19 07:55:48,874 INFO L899 garLoopResultBuilder]: For program point L912(line 912) no Hoare annotation was computed. [2023-11-19 07:55:48,874 INFO L895 garLoopResultBuilder]: At program point L776(line 776) the Hoare annotation is: (let ((.cse7 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7 .cse8)) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse0 (and (= ~pumpRunning~0 0) .cse7 .cse8)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 (< |old(~switchedOnBeforeTS~0)| 1) .cse2 .cse4 .cse5) (or .cse6 .cse0 .cse1 .cse2)))) [2023-11-19 07:55:48,874 INFO L899 garLoopResultBuilder]: For program point L776-1(line 776) no Hoare annotation was computed. [2023-11-19 07:55:48,874 INFO L895 garLoopResultBuilder]: At program point L537(line 537) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (< 0 |old(~waterLevel~0)|) .cse2) (or .cse1 .cse3 .cse2) (or .cse4 .cse1 (and .cse5 (= 2 ~waterLevel~0)) .cse3) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2) (or (< 1 |old(~waterLevel~0)|) .cse4 (and .cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1))) [2023-11-19 07:55:48,875 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 803) no Hoare annotation was computed. [2023-11-19 07:55:48,875 INFO L899 garLoopResultBuilder]: For program point L537-1(lines 518 542) no Hoare annotation was computed. [2023-11-19 07:55:48,875 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 444) no Hoare annotation was computed. [2023-11-19 07:55:48,875 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 806) no Hoare annotation was computed. [2023-11-19 07:55:48,875 INFO L899 garLoopResultBuilder]: For program point L438-2(lines 434 456) no Hoare annotation was computed. [2023-11-19 07:55:48,875 INFO L899 garLoopResultBuilder]: For program point L789-1(lines 781 809) no Hoare annotation was computed. [2023-11-19 07:55:48,875 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 908 915) no Hoare annotation was computed. [2023-11-19 07:55:48,876 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 431 457) the Hoare annotation is: (let ((.cse7 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7 .cse8)) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse0 (and (= ~pumpRunning~0 0) .cse7 .cse8)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 (< |old(~switchedOnBeforeTS~0)| 1) .cse2 .cse4 .cse5) (or .cse6 .cse0 .cse1 .cse2)))) [2023-11-19 07:55:48,876 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 800) no Hoare annotation was computed. [2023-11-19 07:55:48,876 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification5_spec__2_returnLabel#1(lines 771 780) no Hoare annotation was computed. [2023-11-19 07:55:48,876 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 534) no Hoare annotation was computed. [2023-11-19 07:55:48,876 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCritical_returnLabel#1(lines 955 963) no Hoare annotation was computed. [2023-11-19 07:55:48,876 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 431 457) no Hoare annotation was computed. [2023-11-19 07:55:48,877 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 539) no Hoare annotation was computed. [2023-11-19 07:55:48,877 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 559 569) no Hoare annotation was computed. [2023-11-19 07:55:48,877 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 912) no Hoare annotation was computed. [2023-11-19 07:55:48,877 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 901) no Hoare annotation was computed. [2023-11-19 07:55:48,877 INFO L899 garLoopResultBuilder]: For program point L894-2(lines 894 901) no Hoare annotation was computed. [2023-11-19 07:55:48,877 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 731) no Hoare annotation was computed. [2023-11-19 07:55:48,877 INFO L899 garLoopResultBuilder]: For program point L725-1(lines 725 731) no Hoare annotation was computed. [2023-11-19 07:55:48,878 INFO L899 garLoopResultBuilder]: For program point L754(lines 695 758) no Hoare annotation was computed. [2023-11-19 07:55:48,878 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 873 883) no Hoare annotation was computed. [2023-11-19 07:55:48,878 INFO L895 garLoopResultBuilder]: At program point L717(line 717) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 (<= ~waterLevel~0 1) .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 (<= ~waterLevel~0 0) .cse6) (and .cse4 .cse5 .cse2 .cse3 (= ~waterLevel~0 1) .cse6))) [2023-11-19 07:55:48,878 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 668 674) no Hoare annotation was computed. [2023-11-19 07:55:48,878 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 884 906) no Hoare annotation was computed. [2023-11-19 07:55:48,878 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:55:48,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:55:48,879 INFO L895 garLoopResultBuilder]: At program point L751(lines 704 752) the Hoare annotation is: false [2023-11-19 07:55:48,879 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 866 872) no Hoare annotation was computed. [2023-11-19 07:55:48,879 INFO L899 garLoopResultBuilder]: For program point L706(lines 705 750) no Hoare annotation was computed. [2023-11-19 07:55:48,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:55:48,879 INFO L899 garLoopResultBuilder]: For program point L735(lines 735 746) no Hoare annotation was computed. [2023-11-19 07:55:48,880 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification5_spec__1_returnLabel#1(lines 763 770) no Hoare annotation was computed. [2023-11-19 07:55:48,880 INFO L895 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 (<= ~waterLevel~0 1) .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 (<= ~waterLevel~0 0) .cse6) (and .cse4 .cse5 .cse2 .cse3 (= ~waterLevel~0 1) .cse6))) [2023-11-19 07:55:48,880 INFO L895 garLoopResultBuilder]: At program point L748(lines 705 750) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 (<= ~waterLevel~0 1) .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 (<= ~waterLevel~0 0) .cse6) (and .cse4 .cse5 .cse2 .cse3 (= ~waterLevel~0 1) .cse6))) [2023-11-19 07:55:48,880 INFO L899 garLoopResultBuilder]: For program point L715(lines 715 721) no Hoare annotation was computed. [2023-11-19 07:55:48,880 INFO L899 garLoopResultBuilder]: For program point L715-1(lines 715 721) no Hoare annotation was computed. [2023-11-19 07:55:48,880 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:55:48,881 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 675 681) no Hoare annotation was computed. [2023-11-19 07:55:48,881 INFO L899 garLoopResultBuilder]: For program point L707(lines 707 711) no Hoare annotation was computed. [2023-11-19 07:55:48,881 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 682 690) no Hoare annotation was computed. [2023-11-19 07:55:48,881 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 745) no Hoare annotation was computed. [2023-11-19 07:55:48,881 INFO L895 garLoopResultBuilder]: At program point L741-2(lines 735 746) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 (<= ~waterLevel~0 1) .cse2 .cse3))) [2023-11-19 07:55:48,881 INFO L899 garLoopResultBuilder]: For program point activatePump_returnLabel#1(lines 543 550) no Hoare annotation was computed. [2023-11-19 07:55:48,882 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 628) no Hoare annotation was computed. [2023-11-19 07:55:48,882 INFO L899 garLoopResultBuilder]: For program point L624-2(lines 624 628) no Hoare annotation was computed. [2023-11-19 07:55:48,882 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 466 490) the Hoare annotation is: (let ((.cse3 (< 1 ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3 (< ~switchedOnBeforeTS~0 1) (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))))) [2023-11-19 07:55:48,882 INFO L899 garLoopResultBuilder]: For program point L1000(lines 1000 1006) no Hoare annotation was computed. [2023-11-19 07:55:48,882 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 996 1009) no Hoare annotation was computed. [2023-11-19 07:55:48,882 INFO L895 garLoopResultBuilder]: At program point L480(line 480) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) .cse0) (or .cse0 (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:55:48,883 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 615 633) no Hoare annotation was computed. [2023-11-19 07:55:48,883 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 466 490) no Hoare annotation was computed. [2023-11-19 07:55:48,883 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 482) no Hoare annotation was computed. [2023-11-19 07:55:48,883 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 487) no Hoare annotation was computed. [2023-11-19 07:55:48,883 INFO L895 garLoopResultBuilder]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:55:48,883 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 466 490) no Hoare annotation was computed. [2023-11-19 07:55:48,884 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 931 942) no Hoare annotation was computed. [2023-11-19 07:55:48,884 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 931 942) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse1 (= 2 ~waterLevel~0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (< 1 |old(~waterLevel~0)|)) (.cse6 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse2 (< ~switchedOnBeforeTS~0 1) (not (= ~methaneLevelCritical~0 0)) .cse5) (or .cse6 .cse1 .cse2 .cse3) (or .cse4 .cse6 .cse2 .cse5))) [2023-11-19 07:55:48,884 INFO L899 garLoopResultBuilder]: For program point L935-1(lines 931 942) no Hoare annotation was computed. [2023-11-19 07:55:48,884 INFO L895 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:55:48,884 INFO L895 garLoopResultBuilder]: At program point L502(line 502) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 07:55:48,885 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 508) no Hoare annotation was computed. [2023-11-19 07:55:48,885 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 513) no Hoare annotation was computed. [2023-11-19 07:55:48,885 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 1010 1018) no Hoare annotation was computed. [2023-11-19 07:55:48,885 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 492 516) the Hoare annotation is: (let ((.cse3 (< 1 ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3 (< ~switchedOnBeforeTS~0 1) (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))))) [2023-11-19 07:55:48,885 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 647) no Hoare annotation was computed. [2023-11-19 07:55:48,885 INFO L899 garLoopResultBuilder]: For program point L643-2(lines 643 647) no Hoare annotation was computed. [2023-11-19 07:55:48,886 INFO L895 garLoopResultBuilder]: At program point L511(line 511) the Hoare annotation is: (let ((.cse1 (< 1 ~waterLevel~0)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (< ~switchedOnBeforeTS~0 1) (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse3 .cse0 .cse1) (or .cse2 .cse3 .cse0 (not (= 2 ~waterLevel~0))))) [2023-11-19 07:55:48,886 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 634 652) no Hoare annotation was computed. [2023-11-19 07:55:48,886 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 492 516) no Hoare annotation was computed. [2023-11-19 07:55:48,886 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 492 516) no Hoare annotation was computed. [2023-11-19 07:55:48,886 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 570 578) no Hoare annotation was computed. [2023-11-19 07:55:48,886 INFO L899 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 570 578) no Hoare annotation was computed. [2023-11-19 07:55:48,887 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 570 578) the Hoare annotation is: true [2023-11-19 07:55:48,889 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:48,891 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:55:48,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:48 BoogieIcfgContainer [2023-11-19 07:55:48,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:55:48,905 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:48,905 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:48,906 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:48,906 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:21" (3/4) ... [2023-11-19 07:55:48,908 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:55:48,912 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-19 07:55:48,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 07:55:48,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 07:55:48,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 07:55:48,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 07:55:48,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 07:55:48,914 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 07:55:48,914 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 07:55:48,914 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-19 07:55:48,922 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 07:55:48,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 07:55:48,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:55:48,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:55:48,925 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:55:49,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:55:49,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:55:49,047 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:49,048 INFO L158 Benchmark]: Toolchain (without parser) took 29043.58ms. Allocated memory was 117.4MB in the beginning and 337.6MB in the end (delta: 220.2MB). Free memory was 73.2MB in the beginning and 187.8MB in the end (delta: -114.7MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. [2023-11-19 07:55:49,048 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:49,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.98ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 53.1MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:55:49,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.49ms. Allocated memory is still 117.4MB. Free memory was 53.1MB in the beginning and 50.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:49,050 INFO L158 Benchmark]: Boogie Preprocessor took 71.03ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 49.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:49,051 INFO L158 Benchmark]: RCFGBuilder took 611.48ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 48.8MB in the beginning and 118.9MB in the end (delta: -70.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:55:49,052 INFO L158 Benchmark]: TraceAbstraction took 27603.69ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 118.1MB in the beginning and 196.2MB in the end (delta: -78.2MB). Peak memory consumption was 192.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:49,052 INFO L158 Benchmark]: Witness Printer took 141.51ms. Allocated memory is still 337.6MB. Free memory was 196.2MB in the beginning and 187.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:55:49,055 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.98ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 53.1MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.49ms. Allocated memory is still 117.4MB. Free memory was 53.1MB in the beginning and 50.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.03ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 49.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.48ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 48.8MB in the beginning and 118.9MB in the end (delta: -70.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27603.69ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 118.1MB in the beginning and 196.2MB in the end (delta: -78.2MB). Peak memory consumption was 192.1MB. Max. memory is 16.1GB. * Witness Printer took 141.51ms. Allocated memory is still 337.6MB. Free memory was 196.2MB in the beginning and 187.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] - GenericResultAtLocation [Line: 691]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] - GenericResultAtLocation [Line: 759]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] - GenericResultAtLocation [Line: 810]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] - GenericResultAtLocation [Line: 916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 912]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.5s, OverallIterations: 13, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4137 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4086 mSDsluCounter, 6887 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5474 mSDsCounter, 1337 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8774 IncrementalHoareTripleChecker+Invalid, 10111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1337 mSolverCounterUnsat, 1413 mSDtfsCounter, 8774 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1962 GetRequests, 1662 SyntacticMatches, 16 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3571 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1172occurred in iteration=12, InterpolantAutomatonStates: 233, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 313 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 1780 PreInvPairs, 2001 NumberOfFragments, 1534 HoareAnnotationTreeSize, 1780 FomulaSimplifications, 12936 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 24805 FormulaSimplificationTreeSizeReductionInter, 7.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 1865 NumberOfCodeBlocks, 1865 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2555 ConstructedInterpolants, 0 QuantifiedInterpolants, 5560 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2170 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 21 InterpolantComputations, 9 PerfectInterpolantSequences, 1874/2190 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS))) || ((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS))) - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 07:55:49,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a457f7e9-c1d9-4e88-97f7-89e08e4defde/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 Result: TRUE