./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/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_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/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_18490113-2b62-4b17-9f3d-2aa599c25caf/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 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 --- 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 09:27:30,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:30,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:30,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:30,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:30,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:30,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:30,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:30,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:30,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:30,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:30,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:30,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:30,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:30,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:30,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:30,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:30,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:30,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:30,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:30,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:30,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:30,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:30,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:30,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:30,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:30,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:30,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:30,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:30,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:30,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:30,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:30,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:30,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:31,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:31,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:31,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:31,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:31,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:31,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:31,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:31,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 09:27:31,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:31,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:31,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:31,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:31,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:31,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:31,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:31,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:31,065 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:31,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:31,066 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:27:31,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:31,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:27:31,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:31,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:31,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:31,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:31,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:27:31,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:31,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:31,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:31,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:31,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:31,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:31,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:31,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:31,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:31,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:31,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:31,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:31,071 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:31,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:31,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:31,072 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_18490113-2b62-4b17-9f3d-2aa599c25caf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2022-11-20 09:27:31,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:31,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:31,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:31,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:31,382 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:31,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2022-11-20 09:27:34,453 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:34,793 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:34,793 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2022-11-20 09:27:34,810 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/data/cf68ee38d/865acae2158c49a6a8e7c15ca6ed5be6/FLAGeabb67841 [2022-11-20 09:27:34,828 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/data/cf68ee38d/865acae2158c49a6a8e7c15ca6ed5be6 [2022-11-20 09:27:34,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:34,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:34,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:34,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:34,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:34,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:34" (1/1) ... [2022-11-20 09:27:34,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2975cd39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:34, skipping insertion in model container [2022-11-20 09:27:34,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:34" (1/1) ... [2022-11-20 09:27:34,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:34,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:35,085 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_18490113-2b62-4b17-9f3d-2aa599c25caf/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2022-11-20 09:27:35,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:35,185 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:35,228 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_18490113-2b62-4b17-9f3d-2aa599c25caf/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2022-11-20 09:27:35,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:35,337 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:35,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35 WrapperNode [2022-11-20 09:27:35,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:35,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:35,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:35,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:35,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,417 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 200 [2022-11-20 09:27:35,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:35,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:35,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:35,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:35,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,466 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:35,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:35,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:35,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:35,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (1/1) ... [2022-11-20 09:27:35,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:35,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:35,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:35,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 09:27:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 09:27:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 09:27:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 09:27:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 09:27:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 09:27:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 09:27:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 09:27:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 09:27:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 09:27:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:27:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 09:27:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 09:27:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:35,659 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:35,661 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:36,064 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:27:36,071 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:27:36,071 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 09:27:36,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:36 BoogieIcfgContainer [2022-11-20 09:27:36,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:27:36,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:27:36,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:27:36,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:27:36,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:34" (1/3) ... [2022-11-20 09:27:36,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d76352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:36, skipping insertion in model container [2022-11-20 09:27:36,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:35" (2/3) ... [2022-11-20 09:27:36,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d76352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:36, skipping insertion in model container [2022-11-20 09:27:36,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:36" (3/3) ... [2022-11-20 09:27:36,082 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2022-11-20 09:27:36,111 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:27:36,111 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:27:36,155 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:27:36,161 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;@57c49e84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:27:36,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:27:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 74 states have internal predecessors, (94), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 09:27:36,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 09:27:36,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:36,175 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 09:27:36,176 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:27:36,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:36,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1354277059, now seen corresponding path program 1 times [2022-11-20 09:27:36,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:36,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788101899] [2022-11-20 09:27:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:36,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:36,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 09:27:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:36,420 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 09:27:36,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:36,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788101899] [2022-11-20 09:27:36,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788101899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:36,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:36,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:36,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750024410] [2022-11-20 09:27:36,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:36,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:27:36,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:36,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:27:36,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:27:36,466 INFO L87 Difference]: Start difference. First operand has 86 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 74 states have internal predecessors, (94), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 09:27:36,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:36,517 INFO L93 Difference]: Finished difference Result 164 states and 223 transitions. [2022-11-20 09:27:36,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:27:36,519 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 09:27:36,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:36,527 INFO L225 Difference]: With dead ends: 164 [2022-11-20 09:27:36,528 INFO L226 Difference]: Without dead ends: 77 [2022-11-20 09:27:36,531 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 09:27:36,535 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:36,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:27:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-20 09:27:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-20 09:27:36,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 66 states have internal predecessors, (80), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 09:27:36,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-11-20 09:27:36,578 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 25 [2022-11-20 09:27:36,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:36,578 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-11-20 09:27:36,579 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 09:27:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-11-20 09:27:36,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 09:27:36,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:36,582 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 09:27:36,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:27:36,582 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:27:36,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:36,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1985957409, now seen corresponding path program 1 times [2022-11-20 09:27:36,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:36,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708592627] [2022-11-20 09:27:36,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:36,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:36,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 09:27:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:36,730 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 09:27:36,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:36,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708592627] [2022-11-20 09:27:36,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708592627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:36,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:36,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:27:36,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320696472] [2022-11-20 09:27:36,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:36,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:36,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:36,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:36,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:36,735 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 09:27:36,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:36,780 INFO L93 Difference]: Finished difference Result 115 states and 148 transitions. [2022-11-20 09:27:36,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:36,781 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 09:27:36,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:36,782 INFO L225 Difference]: With dead ends: 115 [2022-11-20 09:27:36,784 INFO L226 Difference]: Without dead ends: 68 [2022-11-20 09:27:36,785 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 09:27:36,786 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 18 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:36,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 150 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:27:36,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-20 09:27:36,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-20 09:27:36,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 60 states have internal predecessors, (73), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 09:27:36,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2022-11-20 09:27:36,808 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 26 [2022-11-20 09:27:36,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:36,810 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2022-11-20 09:27:36,810 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 09:27:36,810 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2022-11-20 09:27:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 09:27:36,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:36,814 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] [2022-11-20 09:27:36,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:27:36,814 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:27:36,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:36,815 INFO L85 PathProgramCache]: Analyzing trace with hash -778007147, now seen corresponding path program 1 times [2022-11-20 09:27:36,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:36,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178330513] [2022-11-20 09:27:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:36,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:36,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 09:27:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:36,966 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 09:27:36,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:36,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178330513] [2022-11-20 09:27:36,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178330513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:36,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:36,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:36,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780740057] [2022-11-20 09:27:36,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:36,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:36,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:36,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:36,969 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 09:27:37,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:37,122 INFO L93 Difference]: Finished difference Result 170 states and 222 transitions. [2022-11-20 09:27:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:37,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-11-20 09:27:37,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:37,131 INFO L225 Difference]: With dead ends: 170 [2022-11-20 09:27:37,131 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 09:27:37,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:27:37,133 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 155 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:37,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 306 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:37,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 09:27:37,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2022-11-20 09:27:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 90 states have internal predecessors, (112), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 11 states have call successors, (12) [2022-11-20 09:27:37,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2022-11-20 09:27:37,169 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 31 [2022-11-20 09:27:37,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:37,170 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2022-11-20 09:27:37,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 09:27:37,171 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2022-11-20 09:27:37,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 09:27:37,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:37,176 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 09:27:37,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:27:37,177 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:27:37,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:37,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1260009755, now seen corresponding path program 1 times [2022-11-20 09:27:37,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:37,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465254695] [2022-11-20 09:27:37,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:37,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:37,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 09:27:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:37,360 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 09:27:37,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:37,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465254695] [2022-11-20 09:27:37,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465254695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:37,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:37,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382765634] [2022-11-20 09:27:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:37,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:37,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:37,364 INFO L87 Difference]: Start difference. First operand 104 states and 135 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 09:27:37,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:37,532 INFO L93 Difference]: Finished difference Result 292 states and 395 transitions. [2022-11-20 09:27:37,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:27:37,532 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 09:27:37,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:37,535 INFO L225 Difference]: With dead ends: 292 [2022-11-20 09:27:37,535 INFO L226 Difference]: Without dead ends: 195 [2022-11-20 09:27:37,536 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 09:27:37,538 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 56 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:37,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 343 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-20 09:27:37,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 189. [2022-11-20 09:27:37,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 161 states have internal predecessors, (199), 22 states have call successors, (22), 18 states have call predecessors, (22), 16 states have return successors, (27), 18 states have call predecessors, (27), 22 states have call successors, (27) [2022-11-20 09:27:37,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2022-11-20 09:27:37,580 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 34 [2022-11-20 09:27:37,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:37,581 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2022-11-20 09:27:37,581 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 09:27:37,581 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2022-11-20 09:27:37,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 09:27:37,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:37,588 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 09:27:37,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:27:37,588 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:27:37,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:37,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1823553547, now seen corresponding path program 1 times [2022-11-20 09:27:37,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:37,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246252618] [2022-11-20 09:27:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:37,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:27:37,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:27:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:27:37,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:27:37,679 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:27:37,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 09:27:37,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:27:37,686 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 09:27:37,690 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:27:37,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:27:37 BoogieIcfgContainer [2022-11-20 09:27:37,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:27:37,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:27:37,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:27:37,734 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:27:37,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:36" (3/4) ... [2022-11-20 09:27:37,737 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 09:27:37,810 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:27:37,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:27:37,823 INFO L158 Benchmark]: Toolchain (without parser) took 2978.85ms. Allocated memory is still 201.3MB. Free memory was 172.4MB in the beginning and 146.0MB in the end (delta: 26.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-11-20 09:27:37,823 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory was 106.2MB in the beginning and 106.0MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:27:37,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.96ms. Allocated memory is still 201.3MB. Free memory was 172.2MB in the beginning and 157.1MB in the end (delta: 15.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-20 09:27:37,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.46ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 155.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:27:37,824 INFO L158 Benchmark]: Boogie Preprocessor took 52.54ms. Allocated memory is still 201.3MB. Free memory was 155.0MB in the beginning and 152.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:27:37,824 INFO L158 Benchmark]: RCFGBuilder took 602.23ms. Allocated memory is still 201.3MB. Free memory was 152.9MB in the beginning and 160.3MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:27:37,825 INFO L158 Benchmark]: TraceAbstraction took 1658.07ms. Allocated memory is still 201.3MB. Free memory was 159.3MB in the beginning and 150.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-11-20 09:27:37,825 INFO L158 Benchmark]: Witness Printer took 76.33ms. Allocated memory is still 201.3MB. Free memory was 149.1MB in the beginning and 146.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:27:37,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory was 106.2MB in the beginning and 106.0MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.96ms. Allocated memory is still 201.3MB. Free memory was 172.2MB in the beginning and 157.1MB in the end (delta: 15.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.46ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 155.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.54ms. Allocated memory is still 201.3MB. Free memory was 155.0MB in the beginning and 152.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.23ms. Allocated memory is still 201.3MB. Free memory was 152.9MB in the beginning and 160.3MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1658.07ms. Allocated memory is still 201.3MB. Free memory was 159.3MB in the beginning and 150.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 76.33ms. Allocated memory is still 201.3MB. Free memory was 149.1MB in the beginning and 146.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 328]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L906] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L908] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L914] tmp = __VERIFIER_nondet_int() [L916] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L918] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L213] COND TRUE waterLevel < 2 [L214] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L918] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L924] tmp___0 = __VERIFIER_nondet_int() [L926] 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] [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND TRUE \read(tmp___1) [L946] CALL stopSystem() [L876] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L883] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L946] RET stopSystem() [L953] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L717] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] 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] [L165] 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] [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] 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] [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L175] CALL, EXPR isPumpRunning() [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] 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] [L175] RET, EXPR isPumpRunning() [L175] tmp___1 = isPumpRunning() [L177] COND FALSE !(\read(tmp___1)) [L181] CALL __automaton_fail() [L328] 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 7 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 907 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 520 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 387 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 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 09:27:37,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18490113-2b62-4b17-9f3d-2aa599c25caf/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