./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --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 a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:46:42,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:46:42,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:46:42,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:46:42,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:46:42,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:46:42,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:46:42,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:46:42,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:46:42,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:46:42,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:46:42,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:46:42,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:46:42,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:46:42,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:46:42,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:46:42,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:46:42,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:46:42,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:46:42,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:46:42,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:46:42,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:46:42,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:46:42,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:46:42,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:46:42,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:46:42,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:46:42,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:46:42,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:46:42,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:46:42,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:46:42,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:46:42,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:46:42,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:46:42,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:46:42,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:46:42,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:46:42,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:46:42,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:46:42,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:46:42,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:46:42,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:46:42,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:46:42,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:46:42,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:46:42,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:46:42,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:46:42,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:46:42,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:46:42,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:46:42,733 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:46:42,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:46:42,734 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:46:42,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:46:42,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:46:42,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:46:42,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:46:42,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:46:42,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:46:42,736 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:46:42,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:46:42,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:46:42,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:46:42,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:46:42,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:46:42,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:46:42,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:46:42,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:46:42,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:46:42,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:46:42,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:46:42,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:46:42,740 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:46:42,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:46:42,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:46:42,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 [2022-11-20 10:46:43,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:46:43,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:46:43,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:46:43,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:46:43,086 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:46:43,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2022-11-20 10:46:46,358 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:46:46,581 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:46:46,582 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2022-11-20 10:46:46,606 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/data/849f537ac/a85505e22b994b22b0504eb8daf8addc/FLAG6334b94d8 [2022-11-20 10:46:46,621 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/data/849f537ac/a85505e22b994b22b0504eb8daf8addc [2022-11-20 10:46:46,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:46:46,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:46:46,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:46:46,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:46:46,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:46:46,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:46" (1/1) ... [2022-11-20 10:46:46,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@593e6719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:46, skipping insertion in model container [2022-11-20 10:46:46,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:46" (1/1) ... [2022-11-20 10:46:46,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:46:46,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:46:47,070 WARN L237 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_ea5fe04e-48b6-498e-a7d5-03673288ccc2/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2022-11-20 10:46:47,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:46:47,093 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:46:47,156 WARN L237 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_ea5fe04e-48b6-498e-a7d5-03673288ccc2/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2022-11-20 10:46:47,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:46:47,173 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:46:47,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47 WrapperNode [2022-11-20 10:46:47,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:46:47,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:46:47,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:46:47,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:46:47,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,243 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 210 [2022-11-20 10:46:47,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:46:47,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:46:47,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:46:47,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:46:47,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:46:47,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:46:47,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:46:47,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:46:47,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (1/1) ... [2022-11-20 10:46:47,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:46:47,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:47,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:46:47,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:46:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:46:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 10:46:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 10:46:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 10:46:47,361 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 10:46:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 10:46:47,361 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 10:46:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 10:46:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 10:46:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 10:46:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 10:46:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 10:46:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 10:46:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-20 10:46:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-20 10:46:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:46:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 10:46:47,389 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 10:46:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:46:47,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:46:47,504 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:46:47,506 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:46:47,914 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:46:47,922 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:46:47,922 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:46:47,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:47 BoogieIcfgContainer [2022-11-20 10:46:47,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:46:47,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:46:47,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:46:47,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:46:47,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:46" (1/3) ... [2022-11-20 10:46:47,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56092ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:47, skipping insertion in model container [2022-11-20 10:46:47,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47" (2/3) ... [2022-11-20 10:46:47,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56092ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:47, skipping insertion in model container [2022-11-20 10:46:47,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:47" (3/3) ... [2022-11-20 10:46:47,934 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2022-11-20 10:46:47,957 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:46:47,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:46:48,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:46:48,036 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=LoopsAndPotentialCycles, 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;@65f5ea83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:46:48,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:46:48,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 10:46:48,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 10:46:48,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:48,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:48,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:48,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash 120093643, now seen corresponding path program 1 times [2022-11-20 10:46:48,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:48,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304913103] [2022-11-20 10:46:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:48,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 10:46:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:48,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:48,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304913103] [2022-11-20 10:46:48,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304913103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:48,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:48,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:46:48,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225767375] [2022-11-20 10:46:48,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:48,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:46:48,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:48,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:46:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:46:48,314 INFO L87 Difference]: Start difference. First operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:46:48,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:48,350 INFO L93 Difference]: Finished difference Result 182 states and 247 transitions. [2022-11-20 10:46:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:46:48,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-20 10:46:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:48,361 INFO L225 Difference]: With dead ends: 182 [2022-11-20 10:46:48,362 INFO L226 Difference]: Without dead ends: 86 [2022-11-20 10:46:48,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:46:48,369 INFO L413 NwaCegarLoop]: 120 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, 120 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 [2022-11-20 10:46:48,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:46:48,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-20 10:46:48,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-20 10:46:48,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 65 states have (on average 1.323076923076923) internal successors, (86), 73 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-20 10:46:48,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2022-11-20 10:46:48,429 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2022-11-20 10:46:48,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:48,430 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-11-20 10:46:48,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:46:48,431 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2022-11-20 10:46:48,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:46:48,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:48,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:48,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:46:48,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:48,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:48,435 INFO L85 PathProgramCache]: Analyzing trace with hash 255457081, now seen corresponding path program 1 times [2022-11-20 10:46:48,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:48,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738496071] [2022-11-20 10:46:48,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:48,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 10:46:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:48,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:48,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738496071] [2022-11-20 10:46:48,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738496071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:48,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:48,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:46:48,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531689996] [2022-11-20 10:46:48,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:48,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:48,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:48,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:48,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:48,627 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:46:48,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:48,676 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2022-11-20 10:46:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:48,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 10:46:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:48,681 INFO L225 Difference]: With dead ends: 134 [2022-11-20 10:46:48,681 INFO L226 Difference]: Without dead ends: 77 [2022-11-20 10:46:48,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:48,684 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 16 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 175 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 [2022-11-20 10:46:48,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:46:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-20 10:46:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-20 10:46:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 67 states have internal predecessors, (79), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 10:46:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-11-20 10:46:48,707 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2022-11-20 10:46:48,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:48,707 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-11-20 10:46:48,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:46:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-11-20 10:46:48,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:46:48,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:48,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:48,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:46:48,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:48,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:48,710 INFO L85 PathProgramCache]: Analyzing trace with hash 547616609, now seen corresponding path program 1 times [2022-11-20 10:46:48,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:48,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054091692] [2022-11-20 10:46:48,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:48,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 10:46:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:48,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:48,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054091692] [2022-11-20 10:46:48,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054091692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:48,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:48,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:46:48,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30360218] [2022-11-20 10:46:48,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:48,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:46:48,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:48,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:46:48,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:46:48,868 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:46:49,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:49,168 INFO L93 Difference]: Finished difference Result 260 states and 341 transitions. [2022-11-20 10:46:49,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:46:49,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-11-20 10:46:49,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:49,176 INFO L225 Difference]: With dead ends: 260 [2022-11-20 10:46:49,176 INFO L226 Difference]: Without dead ends: 190 [2022-11-20 10:46:49,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:46:49,185 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 205 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:49,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 512 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:46:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-20 10:46:49,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2022-11-20 10:46:49,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 157 states have internal predecessors, (190), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (26), 17 states have call predecessors, (26), 25 states have call successors, (26) [2022-11-20 10:46:49,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 241 transitions. [2022-11-20 10:46:49,219 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 241 transitions. Word has length 30 [2022-11-20 10:46:49,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:49,220 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 241 transitions. [2022-11-20 10:46:49,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:46:49,220 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 241 transitions. [2022-11-20 10:46:49,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 10:46:49,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:49,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:49,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:46:49,223 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:49,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1724794985, now seen corresponding path program 1 times [2022-11-20 10:46:49,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:49,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844178044] [2022-11-20 10:46:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:49,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:49,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 10:46:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:49,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:49,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844178044] [2022-11-20 10:46:49,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844178044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:49,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:49,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:46:49,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027072959] [2022-11-20 10:46:49,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:49,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:46:49,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:46:49,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:46:49,434 INFO L87 Difference]: Start difference. First operand 184 states and 241 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:46:49,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:49,537 INFO L93 Difference]: Finished difference Result 530 states and 718 transitions. [2022-11-20 10:46:49,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:46:49,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-11-20 10:46:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:49,545 INFO L225 Difference]: With dead ends: 530 [2022-11-20 10:46:49,546 INFO L226 Difference]: Without dead ends: 353 [2022-11-20 10:46:49,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:46:49,558 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 68 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:49,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 396 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:46:49,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-20 10:46:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 344. [2022-11-20 10:46:49,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 290 states have internal predecessors, (346), 50 states have call successors, (50), 38 states have call predecessors, (50), 35 states have return successors, (56), 31 states have call predecessors, (56), 50 states have call successors, (56) [2022-11-20 10:46:49,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 452 transitions. [2022-11-20 10:46:49,642 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 452 transitions. Word has length 34 [2022-11-20 10:46:49,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:49,643 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 452 transitions. [2022-11-20 10:46:49,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:46:49,643 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 452 transitions. [2022-11-20 10:46:49,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 10:46:49,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:49,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:49,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:46:49,652 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:49,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:49,653 INFO L85 PathProgramCache]: Analyzing trace with hash 154877, now seen corresponding path program 1 times [2022-11-20 10:46:49,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:49,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196841907] [2022-11-20 10:46:49,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:49,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:46:49,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:46:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:46:49,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:46:49,706 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:46:49,707 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 10:46:49,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:46:49,712 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 10:46:49,716 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:46:49,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:46:49 BoogieIcfgContainer [2022-11-20 10:46:49,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:46:49,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:46:49,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:46:49,751 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:46:49,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:47" (3/4) ... [2022-11-20 10:46:49,753 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 10:46:49,801 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:46:49,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:46:49,802 INFO L158 Benchmark]: Toolchain (without parser) took 3177.11ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 100.4MB in the beginning and 114.4MB in the end (delta: -14.1MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-11-20 10:46:49,802 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:46:49,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.20ms. Allocated memory is still 144.7MB. Free memory was 100.1MB in the beginning and 81.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 10:46:49,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.38ms. Allocated memory is still 144.7MB. Free memory was 81.3MB in the beginning and 78.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:46:49,803 INFO L158 Benchmark]: Boogie Preprocessor took 36.48ms. Allocated memory is still 144.7MB. Free memory was 78.9MB in the beginning and 77.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:46:49,803 INFO L158 Benchmark]: RCFGBuilder took 643.91ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 77.3MB in the beginning and 159.8MB in the end (delta: -82.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-11-20 10:46:49,804 INFO L158 Benchmark]: TraceAbstraction took 1822.63ms. Allocated memory is still 201.3MB. Free memory was 158.6MB in the beginning and 118.6MB in the end (delta: 39.9MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2022-11-20 10:46:49,804 INFO L158 Benchmark]: Witness Printer took 50.81ms. Allocated memory is still 201.3MB. Free memory was 117.6MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:46:49,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.20ms. Allocated memory is still 144.7MB. Free memory was 100.1MB in the beginning and 81.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.38ms. Allocated memory is still 144.7MB. Free memory was 81.3MB in the beginning and 78.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.48ms. Allocated memory is still 144.7MB. Free memory was 78.9MB in the beginning and 77.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 643.91ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 77.3MB in the beginning and 159.8MB in the end (delta: -82.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1822.63ms. Allocated memory is still 201.3MB. Free memory was 158.6MB in the beginning and 118.6MB in the end (delta: 39.9MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * Witness Printer took 50.81ms. Allocated memory is still 201.3MB. Free memory was 117.6MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 987]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L483] int cleanupTimeShifts = 4; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] int retValue_acc ; [L560] int tmp ; [L564] FCALL select_helpers() [L565] FCALL select_features() [L566] CALL, EXPR valid_product() [L608] int retValue_acc ; [L611] retValue_acc = 1 [L612] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L566] RET, EXPR valid_product() [L566] tmp = valid_product() [L568] COND TRUE \read(tmp) [L570] FCALL setup() [L571] CALL runTest() [L550] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L174] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L176] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L182] tmp = __VERIFIER_nondet_int() [L184] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L186] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L186] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp___2)) [L208] tmp___1 = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp___1) [L212] CALL stopSystem() [L436] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L212] RET stopSystem() [L219] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L243] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L250] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L258] CALL __utac_acc__Specification3_spec__1() [L450] int tmp ; [L451] int tmp___0 ; [L452] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L456] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) [L462] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L462] RET, EXPR getWaterLevel() [L462] tmp___0 = getWaterLevel() [L464] COND TRUE tmp___0 == 2 [L466] CALL, EXPR isPumpRunning() [L350] int retValue_acc ; [L353] retValue_acc = pumpRunning [L354] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L466] RET, EXPR isPumpRunning() [L466] tmp___1 = isPumpRunning() [L468] COND FALSE !(\read(tmp___1)) [L472] CALL __automaton_fail() [L987] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 293 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 289 mSDsluCounter, 1203 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 756 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 447 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 10:46:49,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5fe04e-48b6-498e-a7d5-03673288ccc2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE