./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:00:24,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:00:24,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:00:24,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:00:24,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:00:24,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:00:24,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:00:24,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:00:24,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:00:24,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:00:24,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:00:24,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:00:24,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:00:24,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:00:24,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:00:24,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:00:24,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:00:24,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:00:24,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:00:24,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:00:24,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:00:24,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:00:24,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:00:24,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:00:24,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:00:24,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:00:24,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:00:24,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:00:24,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:00:24,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:00:24,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:00:24,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:00:24,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:00:24,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:00:24,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:00:24,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:00:24,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:00:24,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:00:24,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:00:24,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:00:24,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:00:24,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:00:24,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:00:24,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:00:24,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:00:24,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:00:24,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:00:24,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:00:24,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:00:24,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:00:24,144 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:00:24,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:00:24,145 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:00:24,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:00:24,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:00:24,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:00:24,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:00:24,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:00:24,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:00:24,146 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:00:24,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:00:24,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:00:24,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:00:24,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:00:24,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:00:24,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:00:24,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:24,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:00:24,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:00:24,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:00:24,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:00:24,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:00:24,148 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:00:24,148 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:00:24,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:00:24,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:00:24,149 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef [2021-12-16 01:00:24,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:00:24,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:00:24,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:00:24,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:00:24,367 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:00:24,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2021-12-16 01:00:24,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecdcf3c10/6afb52ed60404d52bd245697facad628/FLAGd078c83c2 [2021-12-16 01:00:24,818 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:00:24,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2021-12-16 01:00:24,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecdcf3c10/6afb52ed60404d52bd245697facad628/FLAGd078c83c2 [2021-12-16 01:00:25,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecdcf3c10/6afb52ed60404d52bd245697facad628 [2021-12-16 01:00:25,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:00:25,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:00:25,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:25,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:00:25,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:00:25,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29636c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25, skipping insertion in model container [2021-12-16 01:00:25,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:00:25,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:00:25,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c[2897,2910] [2021-12-16 01:00:25,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:25,485 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:00:25,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c[2897,2910] [2021-12-16 01:00:25,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:25,577 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:00:25,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25 WrapperNode [2021-12-16 01:00:25,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:25,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:25,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:00:25,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:00:25,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,620 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 222 [2021-12-16 01:00:25,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:25,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:00:25,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:00:25,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:00:25,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:00:25,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:00:25,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:00:25,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:00:25,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (1/1) ... [2021-12-16 01:00:25,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:25,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:25,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 01:00:25,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 01:00:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:00:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-16 01:00:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-16 01:00:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-16 01:00:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-16 01:00:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-16 01:00:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-16 01:00:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-16 01:00:25,722 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-16 01:00:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-16 01:00:25,722 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-16 01:00:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:00:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-16 01:00:25,723 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-16 01:00:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:00:25,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:00:25,769 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:00:25,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:00:25,959 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:00:25,964 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:00:25,965 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 01:00:25,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:25 BoogieIcfgContainer [2021-12-16 01:00:25,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:00:25,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:00:25,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:00:25,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:00:25,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:00:25" (1/3) ... [2021-12-16 01:00:25,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c41a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:25, skipping insertion in model container [2021-12-16 01:00:25,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:25" (2/3) ... [2021-12-16 01:00:25,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c41a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:25, skipping insertion in model container [2021-12-16 01:00:25,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:25" (3/3) ... [2021-12-16 01:00:25,974 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2021-12-16 01:00:25,977 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:00:25,977 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:00:26,025 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:00:26,029 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 01:00:26,030 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:00:26,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-16 01:00:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 01:00:26,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:26,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:26,049 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:26,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:26,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1407183598, now seen corresponding path program 1 times [2021-12-16 01:00:26,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:26,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585366680] [2021-12-16 01:00:26,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:26,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:26,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:26,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585366680] [2021-12-16 01:00:26,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585366680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:26,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:26,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:26,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174332479] [2021-12-16 01:00:26,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:26,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 01:00:26,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:26,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 01:00:26,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:00:26,279 INFO L87 Difference]: Start difference. First operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) 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) [2021-12-16 01:00:26,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:26,310 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2021-12-16 01:00:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 01:00:26,312 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 [2021-12-16 01:00:26,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:26,322 INFO L225 Difference]: With dead ends: 144 [2021-12-16 01:00:26,322 INFO L226 Difference]: Without dead ends: 67 [2021-12-16 01:00:26,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:00:26,329 INFO L933 BasicCegarLoop]: 95 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, 95 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 [2021-12-16 01:00:26,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:26,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-12-16 01:00:26,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-12-16 01:00:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 57 states have internal predecessors, (67), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-16 01:00:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2021-12-16 01:00:26,375 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 19 [2021-12-16 01:00:26,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:26,376 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2021-12-16 01:00:26,376 INFO L471 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) [2021-12-16 01:00:26,376 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2021-12-16 01:00:26,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-16 01:00:26,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:26,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:26,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:00:26,378 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:26,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:26,379 INFO L85 PathProgramCache]: Analyzing trace with hash 321226629, now seen corresponding path program 1 times [2021-12-16 01:00:26,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:26,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569289679] [2021-12-16 01:00:26,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:26,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:26,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:26,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569289679] [2021-12-16 01:00:26,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569289679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:26,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:26,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:00:26,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775905412] [2021-12-16 01:00:26,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:26,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:26,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:26,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:26,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:26,448 INFO L87 Difference]: Start difference. First operand 67 states and 86 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) [2021-12-16 01:00:26,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:26,460 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2021-12-16 01:00:26,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:26,461 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 [2021-12-16 01:00:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:26,464 INFO L225 Difference]: With dead ends: 96 [2021-12-16 01:00:26,464 INFO L226 Difference]: Without dead ends: 58 [2021-12-16 01:00:26,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:26,470 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 125 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 [2021-12-16 01:00:26,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:26,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-12-16 01:00:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-12-16 01:00:26,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-16 01:00:26,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2021-12-16 01:00:26,482 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 20 [2021-12-16 01:00:26,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:26,483 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2021-12-16 01:00:26,483 INFO L471 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) [2021-12-16 01:00:26,483 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2021-12-16 01:00:26,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-16 01:00:26,486 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:26,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:26,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:00:26,487 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1713085083, now seen corresponding path program 1 times [2021-12-16 01:00:26,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:26,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15069447] [2021-12-16 01:00:26,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:26,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:26,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:26,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15069447] [2021-12-16 01:00:26,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15069447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:26,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:26,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:26,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315955681] [2021-12-16 01:00:26,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:26,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:26,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:26,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:26,538 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2021-12-16 01:00:26,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:26,558 INFO L93 Difference]: Finished difference Result 159 states and 208 transitions. [2021-12-16 01:00:26,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:26,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 24 [2021-12-16 01:00:26,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:26,560 INFO L225 Difference]: With dead ends: 159 [2021-12-16 01:00:26,560 INFO L226 Difference]: Without dead ends: 108 [2021-12-16 01:00:26,561 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:00:26,561 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 54 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:26,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 154 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-12-16 01:00:26,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 105. [2021-12-16 01:00:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 80 states have (on average 1.3625) internal successors, (109), 91 states have internal predecessors, (109), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-16 01:00:26,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 137 transitions. [2021-12-16 01:00:26,580 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 137 transitions. Word has length 24 [2021-12-16 01:00:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:26,580 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 137 transitions. [2021-12-16 01:00:26,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2021-12-16 01:00:26,580 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 137 transitions. [2021-12-16 01:00:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 01:00:26,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:26,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:26,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:00:26,582 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:26,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:26,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1716928239, now seen corresponding path program 1 times [2021-12-16 01:00:26,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:26,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304662115] [2021-12-16 01:00:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:26,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:26,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:26,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304662115] [2021-12-16 01:00:26,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304662115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:26,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:26,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:00:26,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867974707] [2021-12-16 01:00:26,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:26,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:00:26,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:26,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:00:26,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:00:26,630 INFO L87 Difference]: Start difference. First operand 105 states and 137 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 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) [2021-12-16 01:00:26,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:26,697 INFO L93 Difference]: Finished difference Result 289 states and 392 transitions. [2021-12-16 01:00:26,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:26,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 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 [2021-12-16 01:00:26,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:26,707 INFO L225 Difference]: With dead ends: 289 [2021-12-16 01:00:26,707 INFO L226 Difference]: Without dead ends: 191 [2021-12-16 01:00:26,708 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:00:26,710 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:26,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 288 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-12-16 01:00:26,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2021-12-16 01:00:26,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 144 states have (on average 1.3472222222222223) internal successors, (194), 163 states have internal predecessors, (194), 28 states have call successors, (28), 20 states have call predecessors, (28), 18 states have return successors, (30), 16 states have call predecessors, (30), 28 states have call successors, (30) [2021-12-16 01:00:26,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 252 transitions. [2021-12-16 01:00:26,730 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 252 transitions. Word has length 28 [2021-12-16 01:00:26,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:26,731 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 252 transitions. [2021-12-16 01:00:26,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 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) [2021-12-16 01:00:26,731 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 252 transitions. [2021-12-16 01:00:26,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-16 01:00:26,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:26,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:26,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:00:26,733 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:26,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:26,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1150482326, now seen corresponding path program 1 times [2021-12-16 01:00:26,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:26,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991331914] [2021-12-16 01:00:26,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:26,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:26,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:26,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991331914] [2021-12-16 01:00:26,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991331914] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:26,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:26,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:26,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557392701] [2021-12-16 01:00:26,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:26,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:26,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:26,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:26,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:26,778 INFO L87 Difference]: Start difference. First operand 191 states and 252 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-12-16 01:00:26,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:26,797 INFO L93 Difference]: Finished difference Result 325 states and 433 transitions. [2021-12-16 01:00:26,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:26,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 30 [2021-12-16 01:00:26,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:26,811 INFO L225 Difference]: With dead ends: 325 [2021-12-16 01:00:26,812 INFO L226 Difference]: Without dead ends: 141 [2021-12-16 01:00:26,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:26,813 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:26,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:26,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-12-16 01:00:26,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2021-12-16 01:00:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 108 states have (on average 1.2592592592592593) internal successors, (136), 115 states have internal predecessors, (136), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-16 01:00:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 168 transitions. [2021-12-16 01:00:26,825 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 168 transitions. Word has length 30 [2021-12-16 01:00:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:26,825 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 168 transitions. [2021-12-16 01:00:26,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-12-16 01:00:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 168 transitions. [2021-12-16 01:00:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-16 01:00:26,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:26,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:26,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:00:26,827 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:26,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:26,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2143013367, now seen corresponding path program 1 times [2021-12-16 01:00:26,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:26,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923507299] [2021-12-16 01:00:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:26,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:26,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:26,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923507299] [2021-12-16 01:00:26,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923507299] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:26,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:26,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:00:26,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621830723] [2021-12-16 01:00:26,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:26,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:26,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:26,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:00:26,898 INFO L87 Difference]: Start difference. First operand 139 states and 168 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-12-16 01:00:26,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:26,977 INFO L93 Difference]: Finished difference Result 149 states and 178 transitions. [2021-12-16 01:00:26,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 01:00:26,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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 32 [2021-12-16 01:00:26,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:26,978 INFO L225 Difference]: With dead ends: 149 [2021-12-16 01:00:26,978 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 01:00:26,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:00:26,980 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 47 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:26,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 149 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:00:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 01:00:26,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 01:00:26,981 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) [2021-12-16 01:00:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 01:00:26,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-12-16 01:00:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:26,981 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 01:00:26,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-12-16 01:00:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 01:00:26,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 01:00:26,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 01:00:26,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:00:26,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-16 01:00:27,367 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 440 447) the Hoare annotation is: true [2021-12-16 01:00:27,367 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 440 447) no Hoare annotation was computed. [2021-12-16 01:00:27,368 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 440 447) no Hoare annotation was computed. [2021-12-16 01:00:27,368 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 381 387) no Hoare annotation was computed. [2021-12-16 01:00:27,368 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 381 387) the Hoare annotation is: true [2021-12-16 01:00:27,369 INFO L858 garLoopResultBuilder]: For program point L225-1(lines 221 232) no Hoare annotation was computed. [2021-12-16 01:00:27,369 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 221 232) the Hoare annotation is: true [2021-12-16 01:00:27,369 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 221 232) no Hoare annotation was computed. [2021-12-16 01:00:27,369 INFO L854 garLoopResultBuilder]: At program point L159(lines 154 161) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-16 01:00:27,369 INFO L854 garLoopResultBuilder]: At program point L279(lines 274 282) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-16 01:00:27,371 INFO L854 garLoopResultBuilder]: At program point L403(line 403) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-16 01:00:27,372 INFO L854 garLoopResultBuilder]: At program point L399(line 399) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-16 01:00:27,372 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 205) no Hoare annotation was computed. [2021-12-16 01:00:27,372 INFO L854 garLoopResultBuilder]: At program point L201-2(lines 197 208) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-16 01:00:27,372 INFO L854 garLoopResultBuilder]: At program point L519(lines 504 522) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-16 01:00:27,373 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 357 380) no Hoare annotation was computed. [2021-12-16 01:00:27,373 INFO L854 garLoopResultBuilder]: At program point L408(line 408) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) (not (= |old(~pumpRunning~0)| 0))) [2021-12-16 01:00:27,374 INFO L854 garLoopResultBuilder]: At program point L408-1(lines 389 413) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) (not (= |old(~pumpRunning~0)| 0))) [2021-12-16 01:00:27,374 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 183) no Hoare annotation was computed. [2021-12-16 01:00:27,374 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 186) no Hoare annotation was computed. [2021-12-16 01:00:27,374 INFO L854 garLoopResultBuilder]: At program point L173-1(lines 165 189) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift_getWaterLevel_#res#1| 1) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 1)) .cse0) (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) .cse0))) [2021-12-16 01:00:27,374 INFO L858 garLoopResultBuilder]: For program point L368-1(lines 368 374) no Hoare annotation was computed. [2021-12-16 01:00:27,374 INFO L858 garLoopResultBuilder]: For program point L397(lines 397 405) no Hoare annotation was computed. [2021-12-16 01:00:27,374 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 410) no Hoare annotation was computed. [2021-12-16 01:00:27,376 INFO L858 garLoopResultBuilder]: For program point L513(lines 513 517) no Hoare annotation was computed. [2021-12-16 01:00:27,376 INFO L858 garLoopResultBuilder]: For program point L513-2(lines 513 517) no Hoare annotation was computed. [2021-12-16 01:00:27,377 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-16 01:00:27,377 INFO L854 garLoopResultBuilder]: At program point L464(lines 459 467) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) .cse0))) [2021-12-16 01:00:27,377 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 357 380) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) (not (= |old(~pumpRunning~0)| 0))) [2021-12-16 01:00:27,377 INFO L854 garLoopResultBuilder]: At program point L270(lines 265 273) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1) .cse0) (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) .cse0))) [2021-12-16 01:00:27,377 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 357 380) no Hoare annotation was computed. [2021-12-16 01:00:27,377 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2021-12-16 01:00:27,378 INFO L858 garLoopResultBuilder]: For program point L361-1(lines 360 379) no Hoare annotation was computed. [2021-12-16 01:00:27,378 INFO L861 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2021-12-16 01:00:27,378 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2021-12-16 01:00:27,378 INFO L858 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2021-12-16 01:00:27,378 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2021-12-16 01:00:27,378 INFO L861 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2021-12-16 01:00:27,378 INFO L861 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2021-12-16 01:00:27,379 INFO L858 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2021-12-16 01:00:27,379 INFO L861 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2021-12-16 01:00:27,379 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-16 01:00:27,379 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-12-16 01:00:27,379 INFO L854 garLoopResultBuilder]: At program point L535(lines 523 537) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,379 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 533) no Hoare annotation was computed. [2021-12-16 01:00:27,380 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 527 533) no Hoare annotation was computed. [2021-12-16 01:00:27,380 INFO L858 garLoopResultBuilder]: For program point L296(lines 295 342) no Hoare annotation was computed. [2021-12-16 01:00:27,380 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 338) no Hoare annotation was computed. [2021-12-16 01:00:27,380 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-16 01:00:27,380 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-16 01:00:27,380 INFO L854 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,380 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-16 01:00:27,381 INFO L861 garLoopResultBuilder]: At program point L346(lines 285 350) the Hoare annotation is: true [2021-12-16 01:00:27,381 INFO L854 garLoopResultBuilder]: At program point L569(lines 564 572) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,381 INFO L854 garLoopResultBuilder]: At program point L561(lines 557 563) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,381 INFO L858 garLoopResultBuilder]: For program point L305(lines 305 311) no Hoare annotation was computed. [2021-12-16 01:00:27,381 INFO L858 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2021-12-16 01:00:27,381 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2021-12-16 01:00:27,381 INFO L858 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2021-12-16 01:00:27,381 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 301) no Hoare annotation was computed. [2021-12-16 01:00:27,382 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-16 01:00:27,382 INFO L861 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2021-12-16 01:00:27,382 INFO L854 garLoopResultBuilder]: At program point L343(lines 294 344) the Hoare annotation is: false [2021-12-16 01:00:27,383 INFO L861 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2021-12-16 01:00:27,383 INFO L854 garLoopResultBuilder]: At program point L529(line 529) the Hoare annotation is: false [2021-12-16 01:00:27,384 INFO L858 garLoopResultBuilder]: For program point L331(lines 331 337) no Hoare annotation was computed. [2021-12-16 01:00:27,385 INFO L854 garLoopResultBuilder]: At program point L554(lines 550 556) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,385 INFO L854 garLoopResultBuilder]: At program point L331-2(lines 325 338) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,385 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 321) no Hoare annotation was computed. [2021-12-16 01:00:27,385 INFO L858 garLoopResultBuilder]: For program point L315-1(lines 315 321) no Hoare annotation was computed. [2021-12-16 01:00:27,385 INFO L854 garLoopResultBuilder]: At program point L340(lines 295 342) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,385 INFO L854 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,385 INFO L854 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:27,385 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 209 220) no Hoare annotation was computed. [2021-12-16 01:00:27,388 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 209 220) no Hoare annotation was computed. [2021-12-16 01:00:27,388 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 209 220) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2021-12-16 01:00:27,390 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-16 01:00:27,391 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 01:00:27,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:00:27 BoogieIcfgContainer [2021-12-16 01:00:27,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 01:00:27,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 01:00:27,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 01:00:27,403 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 01:00:27,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:25" (3/4) ... [2021-12-16 01:00:27,405 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 01:00:27,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-16 01:00:27,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-16 01:00:27,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-16 01:00:27,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-16 01:00:27,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-16 01:00:27,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-16 01:00:27,414 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2021-12-16 01:00:27,414 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-16 01:00:27,414 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-16 01:00:27,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-16 01:00:27,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 01:00:27,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:00:27,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:00:27,430 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-16 01:00:27,431 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (waterLevel == \old(waterLevel) && pumpRunning == 0) || !(\old(pumpRunning) == 0) [2021-12-16 01:00:27,431 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) && ((waterLevel == \old(waterLevel) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) [2021-12-16 01:00:27,431 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(waterLevel) == 1) || (\result == 1 && tmp == 1)) || !(\old(pumpRunning) == 0)) && ((waterLevel == \old(waterLevel) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) [2021-12-16 01:00:27,431 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-16 01:00:27,431 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 0)) && (((\result == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) [2021-12-16 01:00:27,432 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-16 01:00:27,432 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-16 01:00:27,444 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 01:00:27,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 01:00:27,444 INFO L158 Benchmark]: Toolchain (without parser) took 2222.21ms. Allocated memory was 86.0MB in the beginning and 136.3MB in the end (delta: 50.3MB). Free memory was 53.6MB in the beginning and 81.9MB in the end (delta: -28.2MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-12-16 01:00:27,444 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:00:27,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.31ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 53.5MB in the beginning and 81.8MB in the end (delta: -28.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:27,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.76ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 79.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:27,445 INFO L158 Benchmark]: Boogie Preprocessor took 36.70ms. Allocated memory is still 113.2MB. Free memory was 79.3MB in the beginning and 78.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:27,445 INFO L158 Benchmark]: RCFGBuilder took 307.75ms. Allocated memory is still 113.2MB. Free memory was 78.0MB in the beginning and 62.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-16 01:00:27,445 INFO L158 Benchmark]: TraceAbstraction took 1435.60ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 62.6MB in the beginning and 87.3MB in the end (delta: -24.7MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2021-12-16 01:00:27,446 INFO L158 Benchmark]: Witness Printer took 41.03ms. Allocated memory is still 136.3MB. Free memory was 87.3MB in the beginning and 81.9MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-16 01:00:27,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.31ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 53.5MB in the beginning and 81.8MB in the end (delta: -28.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.76ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 79.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.70ms. Allocated memory is still 113.2MB. Free memory was 79.3MB in the beginning and 78.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.75ms. Allocated memory is still 113.2MB. Free memory was 78.0MB in the beginning and 62.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1435.60ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 62.6MB in the beginning and 87.3MB in the end (delta: -24.7MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Witness Printer took 41.03ms. Allocated memory is still 136.3MB. Free memory was 87.3MB in the beginning and 81.9MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. 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: 158]: 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 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 196 mSDsluCounter, 860 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 432 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 428 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 279 PreInvPairs, 321 NumberOfFragments, 235 HoareAnnotationTreeSize, 279 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 35 FomulaSimplificationsInter, 937 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 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: 564]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: (waterLevel == \old(waterLevel) && pumpRunning == 0) || !(\old(pumpRunning) == 0) - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 0)) && (((\result == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) == 1) || (\result == 1 && tmp == 1)) || !(\old(pumpRunning) == 0)) && ((waterLevel == \old(waterLevel) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) && ((waterLevel == \old(waterLevel) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 RESULT: Ultimate proved your program to be correct! [2021-12-16 01:00:27,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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