./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8 --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 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff --- 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-e04fb08 [2022-11-16 12:25:03,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:25:03,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:25:03,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:25:03,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:25:03,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:25:03,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:25:03,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:25:03,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:25:03,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:25:03,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:25:03,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:25:03,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:25:03,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:25:03,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:25:03,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:25:03,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:25:03,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:25:03,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:25:03,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:25:03,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:25:03,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:25:03,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:25:03,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:25:03,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:25:03,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:25:03,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:25:03,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:25:03,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:25:03,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:25:03,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:25:03,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:25:03,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:25:03,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:25:03,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:25:03,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:25:03,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:25:03,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:25:03,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:25:03,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:25:03,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:25:03,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:25:03,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:25:03,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:25:03,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:25:03,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:25:03,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:25:03,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:25:03,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:25:03,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:25:03,887 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:25:03,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:25:03,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:25:03,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:25:03,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:25:03,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:25:03,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:25:03,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:25:03,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:25:03,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:25:03,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:25:03,891 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:25:03,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:25:03,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:25:03,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:25:03,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:25:03,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:25:03,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:25:03,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:25:03,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:25:03,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:25:03,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:25:03,894 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:25:03,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:25:03,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:25:03,894 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_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff [2022-11-16 12:25:04,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:25:04,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:25:04,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:25:04,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:25:04,282 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:25:04,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2022-11-16 12:25:04,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/data/35ec835ed/b2f3c6c95163411d9b02b92597cace6b/FLAG7327360ca [2022-11-16 12:25:04,883 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:25:04,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2022-11-16 12:25:04,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/data/35ec835ed/b2f3c6c95163411d9b02b92597cace6b/FLAG7327360ca [2022-11-16 12:25:05,187 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/data/35ec835ed/b2f3c6c95163411d9b02b92597cace6b [2022-11-16 12:25:05,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:25:05,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:25:05,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:25:05,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:25:05,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:25:05,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46cfc7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05, skipping insertion in model container [2022-11-16 12:25:05,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:25:05,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:25:05,547 WARN L229 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_a1e50ff5-8b33-41fd-88ae-e619415f28a2/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c[16697,16710] [2022-11-16 12:25:05,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:25:05,561 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:25:05,632 WARN L229 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_a1e50ff5-8b33-41fd-88ae-e619415f28a2/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c[16697,16710] [2022-11-16 12:25:05,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:25:05,653 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:25:05,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05 WrapperNode [2022-11-16 12:25:05,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:25:05,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:25:05,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:25:05,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:25:05,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,709 INFO L138 Inliner]: procedures = 51, calls = 147, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 196 [2022-11-16 12:25:05,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:25:05,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:25:05,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:25:05,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:25:05,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,738 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:25:05,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:25:05,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:25:05,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:25:05,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (1/1) ... [2022-11-16 12:25:05,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:25:05,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:05,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:05,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:25:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:25:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 12:25:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 12:25:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 12:25:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 12:25:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 12:25:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 12:25:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:25:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 12:25:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 12:25:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:25:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:25:05,978 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:25:05,982 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:25:06,312 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:25:06,321 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:25:06,322 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:25:06,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:25:06 BoogieIcfgContainer [2022-11-16 12:25:06,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:25:06,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:25:06,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:25:06,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:25:06,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:25:05" (1/3) ... [2022-11-16 12:25:06,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec01fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:25:06, skipping insertion in model container [2022-11-16 12:25:06,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:05" (2/3) ... [2022-11-16 12:25:06,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec01fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:25:06, skipping insertion in model container [2022-11-16 12:25:06,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:25:06" (3/3) ... [2022-11-16 12:25:06,337 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2022-11-16 12:25:06,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:25:06,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:25:06,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:25:06,491 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;@4af5dcb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:25:06,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:25:06,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 12:25:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:25:06,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:06,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:06,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:06,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:06,528 INFO L85 PathProgramCache]: Analyzing trace with hash 104536911, now seen corresponding path program 1 times [2022-11-16 12:25:06,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:06,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36455334] [2022-11-16 12:25:06,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:06,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:06,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:06,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36455334] [2022-11-16 12:25:06,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36455334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:06,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:06,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:25:06,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701002998] [2022-11-16 12:25:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:06,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:25:06,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:06,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:25:06,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:25:06,864 INFO L87 Difference]: Start difference. First operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:06,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:06,903 INFO L93 Difference]: Finished difference Result 118 states and 161 transitions. [2022-11-16 12:25:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:25:06,906 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 12:25:06,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:06,916 INFO L225 Difference]: With dead ends: 118 [2022-11-16 12:25:06,917 INFO L226 Difference]: Without dead ends: 54 [2022-11-16 12:25:06,921 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:25:06,930 INFO L413 NwaCegarLoop]: 77 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, 77 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 [2022-11-16 12:25:06,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:25:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-16 12:25:06,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-16 12:25:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 47 states have internal predecessors, (57), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-16 12:25:06,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2022-11-16 12:25:06,980 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 19 [2022-11-16 12:25:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:06,981 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-11-16 12:25:06,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-11-16 12:25:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 12:25:06,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:06,984 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] [2022-11-16 12:25:06,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:25:06,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:06,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:06,987 INFO L85 PathProgramCache]: Analyzing trace with hash -2010419421, now seen corresponding path program 1 times [2022-11-16 12:25:06,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:06,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115282290] [2022-11-16 12:25:06,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:06,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:07,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:07,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115282290] [2022-11-16 12:25:07,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115282290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:07,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:07,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:25:07,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208212963] [2022-11-16 12:25:07,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:07,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:25:07,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:07,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:25:07,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:25:07,244 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:07,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:07,284 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2022-11-16 12:25:07,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:25:07,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-16 12:25:07,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:07,288 INFO L225 Difference]: With dead ends: 69 [2022-11-16 12:25:07,288 INFO L226 Difference]: Without dead ends: 45 [2022-11-16 12:25:07,289 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:25:07,291 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 18 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 88 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 [2022-11-16 12:25:07,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:25:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-16 12:25:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-16 12:25:07,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 41 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 12:25:07,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-16 12:25:07,313 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2022-11-16 12:25:07,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:07,315 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-16 12:25:07,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:07,317 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-16 12:25:07,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 12:25:07,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:07,320 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] [2022-11-16 12:25:07,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:25:07,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:07,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1391456279, now seen corresponding path program 1 times [2022-11-16 12:25:07,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:07,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221135191] [2022-11-16 12:25:07,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:07,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:07,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:07,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221135191] [2022-11-16 12:25:07,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221135191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:07,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:07,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:25:07,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926512976] [2022-11-16 12:25:07,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:07,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:25:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:07,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:25:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:25:07,601 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:07,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:07,780 INFO L93 Difference]: Finished difference Result 118 states and 153 transitions. [2022-11-16 12:25:07,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:25:07,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-16 12:25:07,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:07,784 INFO L225 Difference]: With dead ends: 118 [2022-11-16 12:25:07,784 INFO L226 Difference]: Without dead ends: 80 [2022-11-16 12:25:07,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:25:07,787 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 124 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 155 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 [2022-11-16 12:25:07,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 155 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:25:07,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-16 12:25:07,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2022-11-16 12:25:07,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-16 12:25:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2022-11-16 12:25:07,809 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 25 [2022-11-16 12:25:07,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:07,810 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2022-11-16 12:25:07,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2022-11-16 12:25:07,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 12:25:07,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:07,812 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] [2022-11-16 12:25:07,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:25:07,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:07,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:07,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2118082784, now seen corresponding path program 1 times [2022-11-16 12:25:07,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:07,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732687296] [2022-11-16 12:25:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:07,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:07,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:07,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732687296] [2022-11-16 12:25:07,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732687296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:07,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:07,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:25:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108449323] [2022-11-16 12:25:07,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:07,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:25:07,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:25:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:25:07,965 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:08,042 INFO L93 Difference]: Finished difference Result 199 states and 274 transitions. [2022-11-16 12:25:08,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:25:08,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-16 12:25:08,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:08,045 INFO L225 Difference]: With dead ends: 199 [2022-11-16 12:25:08,046 INFO L226 Difference]: Without dead ends: 131 [2022-11-16 12:25:08,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:25:08,049 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 30 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:08,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 208 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:25:08,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-16 12:25:08,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-11-16 12:25:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.3333333333333333) internal successors, (144), 115 states have internal predecessors, (144), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2022-11-16 12:25:08,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 173 transitions. [2022-11-16 12:25:08,089 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 173 transitions. Word has length 26 [2022-11-16 12:25:08,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:08,089 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 173 transitions. [2022-11-16 12:25:08,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:08,090 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 173 transitions. [2022-11-16 12:25:08,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 12:25:08,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:08,095 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] [2022-11-16 12:25:08,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:25:08,096 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:08,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1144185819, now seen corresponding path program 1 times [2022-11-16 12:25:08,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:08,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208954654] [2022-11-16 12:25:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:08,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:08,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:08,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208954654] [2022-11-16 12:25:08,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208954654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:08,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:08,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:25:08,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112037569] [2022-11-16 12:25:08,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:08,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:25:08,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:08,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:25:08,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:25:08,181 INFO L87 Difference]: Start difference. First operand 131 states and 173 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:08,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:08,208 INFO L93 Difference]: Finished difference Result 247 states and 332 transitions. [2022-11-16 12:25:08,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:25:08,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-16 12:25:08,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:08,211 INFO L225 Difference]: With dead ends: 247 [2022-11-16 12:25:08,211 INFO L226 Difference]: Without dead ends: 123 [2022-11-16 12:25:08,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:25:08,215 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:08,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:25:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-16 12:25:08,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-11-16 12:25:08,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.28) internal successors, (128), 107 states have internal predecessors, (128), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (14), 10 states have call predecessors, (14), 12 states have call successors, (14) [2022-11-16 12:25:08,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 154 transitions. [2022-11-16 12:25:08,285 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 154 transitions. Word has length 28 [2022-11-16 12:25:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:08,285 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 154 transitions. [2022-11-16 12:25:08,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 154 transitions. [2022-11-16 12:25:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 12:25:08,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:08,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:08,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:25:08,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:08,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:08,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1922048634, now seen corresponding path program 1 times [2022-11-16 12:25:08,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:08,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928501038] [2022-11-16 12:25:08,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:08,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:25:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:08,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:08,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928501038] [2022-11-16 12:25:08,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928501038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:08,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:08,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:25:08,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15623270] [2022-11-16 12:25:08,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:08,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:25:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:25:08,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:25:08,508 INFO L87 Difference]: Start difference. First operand 123 states and 154 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-11-16 12:25:08,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:08,612 INFO L93 Difference]: Finished difference Result 133 states and 165 transitions. [2022-11-16 12:25:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:25:08,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 30 [2022-11-16 12:25:08,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:08,614 INFO L225 Difference]: With dead ends: 133 [2022-11-16 12:25:08,614 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:25:08,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:25:08,617 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:08,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 144 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:25:08,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:25:08,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:25:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:25:08,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-11-16 12:25:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:08,620 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:25:08,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-11-16 12:25:08,620 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:25:08,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:25:08,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:25:08,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:25:08,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:25:09,353 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 219 230) no Hoare annotation was computed. [2022-11-16 12:25:09,354 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 219 230) the Hoare annotation is: true [2022-11-16 12:25:09,354 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 219 230) no Hoare annotation was computed. [2022-11-16 12:25:09,354 INFO L899 garLoopResultBuilder]: For program point L865(lines 865 871) no Hoare annotation was computed. [2022-11-16 12:25:09,354 INFO L899 garLoopResultBuilder]: For program point L861(lines 861 874) no Hoare annotation was computed. [2022-11-16 12:25:09,355 INFO L895 garLoopResultBuilder]: At program point L861-1(lines 853 877) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~5#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-11-16 12:25:09,355 INFO L895 garLoopResultBuilder]: At program point L345(lines 340 348) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-16 12:25:09,357 INFO L895 garLoopResultBuilder]: At program point L310(lines 306 312) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0))) (not (= ~pumpRunning~0 0))) [2022-11-16 12:25:09,357 INFO L895 garLoopResultBuilder]: At program point L849(lines 844 851) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-11-16 12:25:09,358 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 203) no Hoare annotation was computed. [2022-11-16 12:25:09,358 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 282 305) no Hoare annotation was computed. [2022-11-16 12:25:09,359 INFO L895 garLoopResultBuilder]: At program point L199-2(lines 195 206) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-11-16 12:25:09,360 INFO L899 garLoopResultBuilder]: For program point L286-1(lines 285 304) no Hoare annotation was computed. [2022-11-16 12:25:09,360 INFO L899 garLoopResultBuilder]: For program point L848(line 848) no Hoare annotation was computed. [2022-11-16 12:25:09,360 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 282 305) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-16 12:25:09,361 INFO L895 garLoopResultBuilder]: At program point L268(lines 263 271) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-11-16 12:25:09,361 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 282 305) no Hoare annotation was computed. [2022-11-16 12:25:09,361 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 848) no Hoare annotation was computed. [2022-11-16 12:25:09,362 INFO L899 garLoopResultBuilder]: For program point L293-1(lines 293 299) no Hoare annotation was computed. [2022-11-16 12:25:09,364 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-16 12:25:09,365 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-16 12:25:09,365 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-11-16 12:25:09,365 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-16 12:25:09,365 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-16 12:25:09,366 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-16 12:25:09,367 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-16 12:25:09,367 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-16 12:25:09,367 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-16 12:25:09,368 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-16 12:25:09,369 INFO L895 garLoopResultBuilder]: At program point L184(lines 179 187) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-16 12:25:09,370 INFO L895 garLoopResultBuilder]: At program point L469(lines 418 470) the Hoare annotation is: false [2022-11-16 12:25:09,371 INFO L895 garLoopResultBuilder]: At program point L176(lines 172 178) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-16 12:25:09,371 INFO L899 garLoopResultBuilder]: For program point L457(lines 457 463) no Hoare annotation was computed. [2022-11-16 12:25:09,371 INFO L895 garLoopResultBuilder]: At program point L457-2(lines 449 464) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:25:09,372 INFO L899 garLoopResultBuilder]: For program point L420(lines 419 468) no Hoare annotation was computed. [2022-11-16 12:25:09,372 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 464) no Hoare annotation was computed. [2022-11-16 12:25:09,372 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:25:09,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:25:09,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:25:09,374 INFO L895 garLoopResultBuilder]: At program point L441(line 441) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:25:09,374 INFO L895 garLoopResultBuilder]: At program point L466(lines 419 468) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:25:09,374 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 435) no Hoare annotation was computed. [2022-11-16 12:25:09,375 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2022-11-16 12:25:09,375 INFO L899 garLoopResultBuilder]: For program point L429-1(lines 429 435) no Hoare annotation was computed. [2022-11-16 12:25:09,376 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2022-11-16 12:25:09,378 INFO L895 garLoopResultBuilder]: At program point L169(lines 165 171) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-16 12:25:09,381 INFO L895 garLoopResultBuilder]: At program point L326(lines 321 328) the Hoare annotation is: false [2022-11-16 12:25:09,381 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2022-11-16 12:25:09,381 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:25:09,382 INFO L902 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2022-11-16 12:25:09,382 INFO L895 garLoopResultBuilder]: At program point L405(lines 400 407) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-11-16 12:25:09,382 INFO L902 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2022-11-16 12:25:09,382 INFO L895 garLoopResultBuilder]: At program point L397(lines 385 399) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:25:09,383 INFO L899 garLoopResultBuilder]: For program point L389(lines 389 395) no Hoare annotation was computed. [2022-11-16 12:25:09,383 INFO L899 garLoopResultBuilder]: For program point L389-2(lines 389 395) no Hoare annotation was computed. [2022-11-16 12:25:09,383 INFO L902 garLoopResultBuilder]: At program point L472(lines 409 476) the Hoare annotation is: true [2022-11-16 12:25:09,383 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2022-11-16 12:25:09,383 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 439 445) no Hoare annotation was computed. [2022-11-16 12:25:09,384 INFO L895 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-16 12:25:09,384 INFO L895 garLoopResultBuilder]: At program point L431(line 431) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 12:25:09,384 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 207 218) no Hoare annotation was computed. [2022-11-16 12:25:09,385 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 207 218) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-16 12:25:09,385 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 207 218) no Hoare annotation was computed. [2022-11-16 12:25:09,389 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 12:25:09,392 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:25:09,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:25:09 BoogieIcfgContainer [2022-11-16 12:25:09,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:25:09,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:25:09,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:25:09,444 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:25:09,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:25:06" (3/4) ... [2022-11-16 12:25:09,449 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:25:09,457 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 12:25:09,463 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 12:25:09,463 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 12:25:09,464 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 12:25:09,473 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-11-16 12:25:09,475 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 12:25:09,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 12:25:09,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:25:09,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:25:09,477 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:25:09,477 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:25:09,512 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-11-16 12:25:09,512 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-11-16 12:25:09,513 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 [2022-11-16 12:25:09,513 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(waterLevel) == waterLevel && !(0 == systemActive)) || !(pumpRunning == 0) [2022-11-16 12:25:09,514 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive) [2022-11-16 12:25:09,514 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || \result == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) [2022-11-16 12:25:09,515 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 [2022-11-16 12:25:09,515 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) [2022-11-16 12:25:09,515 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) && (!(pumpRunning == 0) || !(\old(waterLevel) == 1)) [2022-11-16 12:25:09,536 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:25:09,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:25:09,537 INFO L158 Benchmark]: Toolchain (without parser) took 4346.15ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 61.2MB in the beginning and 47.2MB in the end (delta: 14.0MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2022-11-16 12:25:09,538 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:25:09,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.81ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 61.0MB in the beginning and 104.0MB in the end (delta: -43.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:25:09,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.30ms. Allocated memory is still 136.3MB. Free memory was 104.0MB in the beginning and 101.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:25:09,539 INFO L158 Benchmark]: Boogie Preprocessor took 31.64ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 100.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:25:09,540 INFO L158 Benchmark]: RCFGBuilder took 582.59ms. Allocated memory is still 136.3MB. Free memory was 99.8MB in the beginning and 83.7MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:25:09,540 INFO L158 Benchmark]: TraceAbstraction took 3115.53ms. Allocated memory is still 136.3MB. Free memory was 83.0MB in the beginning and 52.4MB in the end (delta: 30.6MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-16 12:25:09,540 INFO L158 Benchmark]: Witness Printer took 92.78ms. Allocated memory is still 136.3MB. Free memory was 52.4MB in the beginning and 47.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:25:09,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.81ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 61.0MB in the beginning and 104.0MB in the end (delta: -43.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.30ms. Allocated memory is still 136.3MB. Free memory was 104.0MB in the beginning and 101.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.64ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 100.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 582.59ms. Allocated memory is still 136.3MB. Free memory was 99.8MB in the beginning and 83.7MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3115.53ms. Allocated memory is still 136.3MB. Free memory was 83.0MB in the beginning and 52.4MB in the end (delta: 30.6MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * Witness Printer took 92.78ms. Allocated memory is still 136.3MB. Free memory was 52.4MB in the beginning and 47.2MB in the end (delta: 5.2MB). 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 - PositiveResult [Line: 848]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 257 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 719 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 390 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 329 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 161 PreInvPairs, 207 NumberOfFragments, 251 HoareAnnotationTreeSize, 161 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 29 FomulaSimplificationsInter, 862 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 409]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || \result == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: (\old(waterLevel) == waterLevel && !(0 == systemActive)) || !(pumpRunning == 0) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive) - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 340]: Loop Invariant Derived loop invariant: ((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) && (!(pumpRunning == 0) || !(\old(waterLevel) == 1)) RESULT: Ultimate proved your program to be correct! [2022-11-16 12:25:09,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e50ff5-8b33-41fd-88ae-e619415f28a2/bin/uautomizer-tPACEb0tL8/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 Result: TRUE