./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version aef121e0
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-aef121e
[2021-11-23 02:51:37,898 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-23 02:51:37,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-23 02:51:37,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-23 02:51:37,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-23 02:51:37,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-23 02:51:37,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-23 02:51:37,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-23 02:51:37,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-23 02:51:37,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-23 02:51:37,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-23 02:51:37,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-23 02:51:37,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-23 02:51:37,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-23 02:51:37,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-23 02:51:37,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-23 02:51:37,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-23 02:51:37,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-23 02:51:37,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-23 02:51:37,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-23 02:51:37,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-23 02:51:37,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-23 02:51:37,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-23 02:51:37,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-23 02:51:37,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-23 02:51:37,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-23 02:51:37,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-23 02:51:37,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-23 02:51:37,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-23 02:51:37,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-23 02:51:37,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-23 02:51:37,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-23 02:51:37,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-23 02:51:37,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-23 02:51:37,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-23 02:51:37,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-23 02:51:37,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-23 02:51:37,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-23 02:51:37,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-23 02:51:37,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-23 02:51:37,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-23 02:51:37,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf
[2021-11-23 02:51:38,055 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-23 02:51:38,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-23 02:51:38,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-23 02:51:38,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-23 02:51:38,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-23 02:51:38,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-23 02:51:38,057 INFO L138 SettingsManager]: * User list type=DISABLED
[2021-11-23 02:51:38,057 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2021-11-23 02:51:38,058 INFO L138 SettingsManager]: * Explicit value domain=true
[2021-11-23 02:51:38,058 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2021-11-23 02:51:38,059 INFO L138 SettingsManager]: * Octagon Domain=false
[2021-11-23 02:51:38,059 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain
[2021-11-23 02:51:38,059 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2021-11-23 02:51:38,060 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2021-11-23 02:51:38,060 INFO L138 SettingsManager]: * Interval Domain=false
[2021-11-23 02:51:38,060 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults:
[2021-11-23 02:51:38,060 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2021-11-23 02:51:38,060 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC
[2021-11-23 02:51:38,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-23 02:51:38,061 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-23 02:51:38,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-23 02:51:38,062 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-23 02:51:38,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-23 02:51:38,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-23 02:51:38,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-23 02:51:38,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-23 02:51:38,064 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-23 02:51:38,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-23 02:51:38,065 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-23 02:51:38,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-23 02:51:38,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-23 02:51:38,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-23 02:51:38,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-23 02:51:38,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-23 02:51:38,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-23 02:51:38,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-23 02:51:38,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2021-11-23 02:51:38,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-23 02:51:38,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-23 02:51:38,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-23 02:51:38,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-23 02:51:38,068 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
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_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09
[2021-11-23 02:51:38,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-23 02:51:38,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-23 02:51:38,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-23 02:51:38,348 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-23 02:51:38,349 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-23 02:51:38,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c
[2021-11-23 02:51:38,408 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/data/e6701b5df/eb71bf858a444d1eb969c27384b7193d/FLAGbf5e26b2d
[2021-11-23 02:51:38,859 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-23 02:51:38,860 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c
[2021-11-23 02:51:38,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/data/e6701b5df/eb71bf858a444d1eb969c27384b7193d/FLAGbf5e26b2d
[2021-11-23 02:51:39,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/data/e6701b5df/eb71bf858a444d1eb969c27384b7193d
[2021-11-23 02:51:39,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-23 02:51:39,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-23 02:51:39,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-23 02:51:39,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-23 02:51:39,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-23 02:51:39,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117c7164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39, skipping insertion in model container
[2021-11-23 02:51:39,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-23 02:51:39,304 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-23 02:51:39,683 WARN L230 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_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189]
[2021-11-23 02:51:39,688 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-11-23 02:51:39,697 INFO L203 MainTranslator]: Completed pre-run
[2021-11-23 02:51:39,767 WARN L230 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_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189]
[2021-11-23 02:51:39,773 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-11-23 02:51:39,796 INFO L208 MainTranslator]: Completed translation
[2021-11-23 02:51:39,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39 WrapperNode
[2021-11-23 02:51:39,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-23 02:51:39,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-23 02:51:39,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-23 02:51:39,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-23 02:51:39,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,885 INFO L137 Inliner]: procedures = 52, calls = 153, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 207
[2021-11-23 02:51:39,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-23 02:51:39,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-23 02:51:39,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-23 02:51:39,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-23 02:51:39,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-23 02:51:39,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-23 02:51:39,956 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-23 02:51:39,956 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-23 02:51:39,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (1/1) ...
[2021-11-23 02:51:39,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-23 02:51:39,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/z3
[2021-11-23 02:51:40,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-23 02:51:40,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-23 02:51:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-23 02:51:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2021-11-23 02:51:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2021-11-23 02:51:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2021-11-23 02:51:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2021-11-23 02:51:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2021-11-23 02:51:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2021-11-23 02:51:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2021-11-23 02:51:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2021-11-23 02:51:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2021-11-23 02:51:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2021-11-23 02:51:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2021-11-23 02:51:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2021-11-23 02:51:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2021-11-23 02:51:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2021-11-23 02:51:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-23 02:51:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2021-11-23 02:51:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2021-11-23 02:51:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-23 02:51:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-23 02:51:40,147 INFO L236 CfgBuilder]: Building ICFG
[2021-11-23 02:51:40,149 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-23 02:51:40,478 INFO L277 CfgBuilder]: Performing block encoding
[2021-11-23 02:51:40,556 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-23 02:51:40,556 INFO L301 CfgBuilder]: Removed 2 assume(true) statements.
[2021-11-23 02:51:40,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:40 BoogieIcfgContainer
[2021-11-23 02:51:40,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-23 02:51:40,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-23 02:51:40,561 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-23 02:51:40,564 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-23 02:51:40,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:51:39" (1/3) ...
[2021-11-23 02:51:40,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3c6c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:40, skipping insertion in model container
[2021-11-23 02:51:40,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:39" (2/3) ...
[2021-11-23 02:51:40,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3c6c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:40, skipping insertion in model container
[2021-11-23 02:51:40,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:40" (3/3) ...
[2021-11-23 02:51:40,568 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c
[2021-11-23 02:51:40,573 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-23 02:51:40,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-23 02:51:40,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-23 02:51:40,628 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-23 02:51:40,628 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-23 02:51:40,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 40 states have (on average 1.425) internal successors, (57), 47 states have internal predecessors, (57), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13)
[2021-11-23 02:51:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-11-23 02:51:40,654 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-23 02:51:40,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:51:40,655 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:51:40,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:51:40,661 INFO L85 PathProgramCache]: Analyzing trace with hash -603420579, now seen corresponding path program 1 times
[2021-11-23 02:51:40,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:51:40,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348480169]
[2021-11-23 02:51:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:51:40,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:51:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:51:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-23 02:51:40,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:51:40,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348480169]
[2021-11-23 02:51:40,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348480169] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:51:40,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 02:51:40,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-23 02:51:40,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702332799]
[2021-11-23 02:51:40,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:51:40,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-23 02:51:40,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:51:40,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-23 02:51:40,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-23 02:51:40,952 INFO L87 Difference]: Start difference. First operand has 63 states, 40 states have (on average 1.425) internal successors, (57), 47 states have internal predecessors, (57), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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)
[2021-11-23 02:51:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:51:41,019 INFO L93 Difference]: Finished difference Result 124 states and 167 transitions.
[2021-11-23 02:51:41,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-23 02:51:41,023 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 17
[2021-11-23 02:51:41,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:51:41,034 INFO L225 Difference]: With dead ends: 124
[2021-11-23 02:51:41,035 INFO L226 Difference]: Without dead ends: 58
[2021-11-23 02:51:41,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-23 02:51:41,044 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-23 02:51:41,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-23 02:51:41,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2021-11-23 02:51:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2021-11-23 02:51:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 43 states have internal predecessors, (49), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12)
[2021-11-23 02:51:41,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions.
[2021-11-23 02:51:41,097 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 17
[2021-11-23 02:51:41,097 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:51:41,098 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions.
[2021-11-23 02:51:41,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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)
[2021-11-23 02:51:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions.
[2021-11-23 02:51:41,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-11-23 02:51:41,101 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-23 02:51:41,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:51:41,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-23 02:51:41,101 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:51:41,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:51:41,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1404946708, now seen corresponding path program 1 times
[2021-11-23 02:51:41,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:51:41,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142650407]
[2021-11-23 02:51:41,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:51:41,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:51:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:51:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-23 02:51:41,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:51:41,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142650407]
[2021-11-23 02:51:41,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142650407] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:51:41,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 02:51:41,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-23 02:51:41,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366688052]
[2021-11-23 02:51:41,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:51:41,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-23 02:51:41,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:51:41,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-23 02:51:41,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-23 02:51:41,202 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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)
[2021-11-23 02:51:41,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:51:41,282 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions.
[2021-11-23 02:51:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-23 02:51:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18
[2021-11-23 02:51:41,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:51:41,286 INFO L225 Difference]: With dead ends: 88
[2021-11-23 02:51:41,286 INFO L226 Difference]: Without dead ends: 50
[2021-11-23 02:51:41,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-23 02:51:41,288 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 02:51:41,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 83 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 02:51:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2021-11-23 02:51:41,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2021-11-23 02:51:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.34375) internal successors, (43), 38 states have internal predecessors, (43), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-23 02:51:41,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions.
[2021-11-23 02:51:41,311 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 18
[2021-11-23 02:51:41,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:51:41,312 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions.
[2021-11-23 02:51:41,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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)
[2021-11-23 02:51:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions.
[2021-11-23 02:51:41,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-11-23 02:51:41,318 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-23 02:51:41,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:51:41,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-23 02:51:41,320 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:51:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:51:41,321 INFO L85 PathProgramCache]: Analyzing trace with hash -255238665, now seen corresponding path program 1 times
[2021-11-23 02:51:41,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:51:41,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113197523]
[2021-11-23 02:51:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:51:41,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:51:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:51:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-23 02:51:41,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:51:41,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113197523]
[2021-11-23 02:51:41,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113197523] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:51:41,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 02:51:41,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-23 02:51:41,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838981580]
[2021-11-23 02:51:41,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:51:41,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-23 02:51:41,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:51:41,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-23 02:51:41,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-23 02:51:41,490 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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)
[2021-11-23 02:51:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:51:41,645 INFO L93 Difference]: Finished difference Result 146 states and 192 transitions.
[2021-11-23 02:51:41,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-23 02:51:41,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21
[2021-11-23 02:51:41,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:51:41,649 INFO L225 Difference]: With dead ends: 146
[2021-11-23 02:51:41,649 INFO L226 Difference]: Without dead ends: 98
[2021-11-23 02:51:41,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-23 02:51:41,651 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 77 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 02:51:41,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 147 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 02:51:41,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2021-11-23 02:51:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 81.
[2021-11-23 02:51:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 62 states have internal predecessors, (72), 15 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (16), 12 states have call predecessors, (16), 15 states have call successors, (16)
[2021-11-23 02:51:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions.
[2021-11-23 02:51:41,672 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 21
[2021-11-23 02:51:41,673 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:51:41,673 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions.
[2021-11-23 02:51:41,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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)
[2021-11-23 02:51:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions.
[2021-11-23 02:51:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-11-23 02:51:41,675 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-23 02:51:41,675 INFO L514 BasicCegarLoop]: 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]
[2021-11-23 02:51:41,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-23 02:51:41,676 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:51:41,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:51:41,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1486415197, now seen corresponding path program 1 times
[2021-11-23 02:51:41,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:51:41,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866632498]
[2021-11-23 02:51:41,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:51:41,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:51:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:51:41,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-23 02:51:41,794 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:51:41,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866632498]
[2021-11-23 02:51:41,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866632498] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:51:41,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 02:51:41,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-23 02:51:41,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962095258]
[2021-11-23 02:51:41,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:51:41,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-23 02:51:41,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:51:41,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-23 02:51:41,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-23 02:51:41,796 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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)
[2021-11-23 02:51:41,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:51:41,896 INFO L93 Difference]: Finished difference Result 222 states and 289 transitions.
[2021-11-23 02:51:41,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-23 02:51:41,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 24
[2021-11-23 02:51:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:51:41,900 INFO L225 Difference]: With dead ends: 222
[2021-11-23 02:51:41,900 INFO L226 Difference]: Without dead ends: 143
[2021-11-23 02:51:41,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-23 02:51:41,903 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 52 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 02:51:41,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 156 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 02:51:41,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2021-11-23 02:51:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 134.
[2021-11-23 02:51:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 92 states have (on average 1.326086956521739) internal successors, (122), 103 states have internal predecessors, (122), 22 states have call successors, (22), 19 states have call predecessors, (22), 19 states have return successors, (24), 19 states have call predecessors, (24), 22 states have call successors, (24)
[2021-11-23 02:51:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 168 transitions.
[2021-11-23 02:51:41,929 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 168 transitions. Word has length 24
[2021-11-23 02:51:41,930 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:51:41,930 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 168 transitions.
[2021-11-23 02:51:41,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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)
[2021-11-23 02:51:41,930 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 168 transitions.
[2021-11-23 02:51:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-11-23 02:51:41,932 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-23 02:51:41,932 INFO L514 BasicCegarLoop]: 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]
[2021-11-23 02:51:41,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-11-23 02:51:41,933 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:51:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:51:41,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1334318650, now seen corresponding path program 1 times
[2021-11-23 02:51:41,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:51:41,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091919379]
[2021-11-23 02:51:41,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:51:41,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:51:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-23 02:51:41,961 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-23 02:51:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-23 02:51:42,012 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2021-11-23 02:51:42,013 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-23 02:51:42,014 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-23 02:51:42,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-11-23 02:51:42,019 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2021-11-23 02:51:42,022 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-23 02:51:42,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:51:42 BoogieIcfgContainer
[2021-11-23 02:51:42,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-23 02:51:42,063 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-23 02:51:42,063 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-23 02:51:42,063 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-23 02:51:42,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:40" (3/4) ...
[2021-11-23 02:51:42,069 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-11-23 02:51:42,147 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/witness.graphml
[2021-11-23 02:51:42,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-23 02:51:42,149 INFO L158 Benchmark]: Toolchain (without parser) took 2934.52ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 66.7MB in the end (delta: -17.0MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB.
[2021-11-23 02:51:42,149 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 90.2MB. Free memory was 67.2MB in the beginning and 67.1MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-23 02:51:42,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.12ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 74.9MB in the end (delta: -25.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-23 02:51:42,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.63ms. Allocated memory is still 109.1MB. Free memory was 74.9MB in the beginning and 72.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-23 02:51:42,151 INFO L158 Benchmark]: Boogie Preprocessor took 67.60ms. Allocated memory is still 109.1MB. Free memory was 72.5MB in the beginning and 71.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-23 02:51:42,151 INFO L158 Benchmark]: RCFGBuilder took 603.41ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 52.6MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2021-11-23 02:51:42,152 INFO L158 Benchmark]: TraceAbstraction took 1501.84ms. Allocated memory is still 109.1MB. Free memory was 52.2MB in the beginning and 70.7MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-23 02:51:42,152 INFO L158 Benchmark]: Witness Printer took 84.78ms. Allocated memory is still 109.1MB. Free memory was 70.7MB in the beginning and 66.7MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2021-11-23 02:51:42,155 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 90.2MB. Free memory was 67.2MB in the beginning and 67.1MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 569.12ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 74.9MB in the end (delta: -25.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 88.63ms. Allocated memory is still 109.1MB. Free memory was 74.9MB in the beginning and 72.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 67.60ms. Allocated memory is still 109.1MB. Free memory was 72.5MB in the beginning and 71.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 603.41ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 52.6MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 1501.84ms. Allocated memory is still 109.1MB. Free memory was 52.2MB in the beginning and 70.7MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 84.78ms. Allocated memory is still 109.1MB. Free memory was 70.7MB in the beginning and 66.7MB in the end (delta: 4.0MB). 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: 880]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L59] int pumpRunning = 0;
[L60] int systemActive = 1;
[L464] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L662] int waterLevel = 1;
[L663] int methaneLevelCritical = 0;
[L742] int cleanupTimeShifts = 4;
[L818] int retValue_acc ;
[L819] int tmp ;
[L823] FCALL select_helpers()
[L824] FCALL select_features()
[L825] CALL, EXPR valid_product()
[L911] int retValue_acc ;
[L914] retValue_acc = 1
[L915] return (retValue_acc);
[L825] RET, EXPR valid_product()
[L825] tmp = valid_product()
[L827] COND TRUE \read(tmp)
[L829] FCALL setup()
[L830] CALL runTest()
[L809] CALL test()
[L229] int splverifierCounter ;
[L230] int tmp ;
[L231] int tmp___0 ;
[L232] int tmp___1 ;
[L233] int tmp___2 ;
[L236] splverifierCounter = 0
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L238] COND TRUE 1
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L240] COND TRUE splverifierCounter < 4
[L246] tmp = __VERIFIER_nondet_int()
[L248] COND TRUE \read(tmp)
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1]
[L250] CALL waterRise()
VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L680] COND TRUE waterLevel < 2
[L681] waterLevel = waterLevel + 1
[L250] RET waterRise()
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2]
[L256] tmp___0 = __VERIFIER_nondet_int()
[L258] 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]
[L266] tmp___2 = __VERIFIER_nondet_int()
[L268] COND FALSE !(\read(tmp___2))
[L272] tmp___1 = __VERIFIER_nondet_int()
[L274] COND TRUE \read(tmp___1)
[L276] CALL stopSystem()
[L213] COND FALSE !(\read(pumpRunning))
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L220] systemActive = 0
[L276] RET stopSystem()
[L283] CALL timeShift()
VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L67] COND FALSE !(\read(pumpRunning))
VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L74] COND FALSE !(\read(systemActive))
VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L82] CALL __utac_acc__Specification3_spec__1()
[L843] int tmp ;
[L844] int tmp___0 ;
[L845] int tmp___1 ;
VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L849] CALL, EXPR isMethaneLevelCritical()
VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L701] int retValue_acc ;
[L704] retValue_acc = methaneLevelCritical
[L705] return (retValue_acc);
[L849] 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]
[L849] tmp = isMethaneLevelCritical()
[L851] COND FALSE !(\read(tmp))
[L855] CALL, EXPR getWaterLevel()
[L733] int retValue_acc ;
[L736] retValue_acc = waterLevel
[L737] return (retValue_acc);
[L855] RET, EXPR getWaterLevel()
[L855] tmp___0 = getWaterLevel()
[L857] COND TRUE tmp___0 == 2
[L859] CALL, EXPR isPumpRunning()
[L165] int retValue_acc ;
[L168] retValue_acc = pumpRunning
[L169] return (retValue_acc);
[L859] RET, EXPR isPumpRunning()
[L859] tmp___1 = isPumpRunning()
[L861] COND FALSE !(\read(tmp___1))
[L865] CALL __automaton_fail()
[L880] 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, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 450 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 230 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, InterpolantAutomatonStates: 13, 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, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 202 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!
[2021-11-23 02:51:42,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eefd1d83-9faf-4b06-95d6-9b7f66e486ff/bin/utaipan-EQgc7hIp5V/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