./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product59.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_product59.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 68cd47586ea836a40d34f69dc7bca714ffc0af5c5bf2f7fbd8cfbbd6f1019685 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:00:43,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:00:43,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:00:43,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:00:43,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:00:43,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:00:43,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:00:44,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:00:44,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:00:44,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:00:44,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:00:44,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:00:44,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:00:44,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:00:44,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:00:44,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:00:44,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:00:44,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:00:44,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:00:44,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:00:44,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:00:44,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:00:44,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:00:44,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:00:44,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:00:44,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:00:44,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:00:44,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:00:44,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:00:44,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:00:44,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:00:44,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:00:44,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:00:44,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:00:44,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:00:44,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:00:44,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:00:44,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:00:44,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:00:44,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:00:44,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:00:44,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:00:44,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:00:44,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:00:44,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:00:44,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:00:44,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:00:44,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:00:44,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:00:44,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:00:44,070 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:00:44,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:00:44,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:00:44,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:00:44,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:00:44,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:00:44,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:00:44,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:00:44,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:00:44,072 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:00:44,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:00:44,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:00:44,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:00:44,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:00:44,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:00:44,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:00:44,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:44,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:00:44,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:00:44,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:00:44,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:00:44,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:00:44,075 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:00:44,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:00:44,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:00:44,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:00:44,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68cd47586ea836a40d34f69dc7bca714ffc0af5c5bf2f7fbd8cfbbd6f1019685 [2021-12-16 01:00:44,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:00:44,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:00:44,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:00:44,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:00:44,339 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:00:44,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2021-12-16 01:00:44,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566cf19c4/22ed94d01aa24edd88933eb5c6a2837d/FLAG9a56327c8 [2021-12-16 01:00:44,859 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:00:44,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2021-12-16 01:00:44,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566cf19c4/22ed94d01aa24edd88933eb5c6a2837d/FLAG9a56327c8 [2021-12-16 01:00:45,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566cf19c4/22ed94d01aa24edd88933eb5c6a2837d [2021-12-16 01:00:45,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:00:45,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:00:45,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:45,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:00:45,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:00:45,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d74a5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45, skipping insertion in model container [2021-12-16 01:00:45,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:00:45,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:00:45,445 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_product59.cil.c[9171,9184] [2021-12-16 01:00:45,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:45,522 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:00:45,589 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_product59.cil.c[9171,9184] [2021-12-16 01:00:45,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:45,628 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:00:45,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45 WrapperNode [2021-12-16 01:00:45,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:45,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:45,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:00:45,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:00:45,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,696 INFO L137 Inliner]: procedures = 57, calls = 158, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 283 [2021-12-16 01:00:45,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:45,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:00:45,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:00:45,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:00:45,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:00:45,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:00:45,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:00:45,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:00:45,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (1/1) ... [2021-12-16 01:00:45,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:45,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:45,775 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 01:00:45,776 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 01:00:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:00:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-16 01:00:45,802 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-16 01:00:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-16 01:00:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-16 01:00:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-16 01:00:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-16 01:00:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:00:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:00:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-16 01:00:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-16 01:00:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-16 01:00:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-16 01:00:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:00:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-16 01:00:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-16 01:00:45,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:00:45,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:00:45,920 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:00:45,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:00:46,252 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:00:46,259 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:00:46,259 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 01:00:46,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:46 BoogieIcfgContainer [2021-12-16 01:00:46,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:00:46,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:00:46,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:00:46,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:00:46,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:00:45" (1/3) ... [2021-12-16 01:00:46,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b83591c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:46, skipping insertion in model container [2021-12-16 01:00:46,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:45" (2/3) ... [2021-12-16 01:00:46,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b83591c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:46, skipping insertion in model container [2021-12-16 01:00:46,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:46" (3/3) ... [2021-12-16 01:00:46,268 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2021-12-16 01:00:46,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:00:46,273 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:00:46,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:00:46,320 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 01:00:46,320 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:00:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-16 01:00:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 01:00:46,360 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:46,361 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 01:00:46,362 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:46,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:46,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1328460563, now seen corresponding path program 1 times [2021-12-16 01:00:46,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:46,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606495971] [2021-12-16 01:00:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:46,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:46,643 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 01:00:46,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:46,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606495971] [2021-12-16 01:00:46,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606495971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:46,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:46,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:46,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295438605] [2021-12-16 01:00:46,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:46,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 01:00:46,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:46,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 01:00:46,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:00:46,692 INFO L87 Difference]: Start difference. First operand has 93 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) 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 01:00:46,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:46,727 INFO L93 Difference]: Finished difference Result 178 states and 243 transitions. [2021-12-16 01:00:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 01:00:46,729 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 01:00:46,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:46,736 INFO L225 Difference]: With dead ends: 178 [2021-12-16 01:00:46,737 INFO L226 Difference]: Without dead ends: 84 [2021-12-16 01:00:46,740 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 01:00:46,746 INFO L933 BasicCegarLoop]: 118 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, 118 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 01:00:46,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:46,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-12-16 01:00:46,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-12-16 01:00:46,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 65 states have (on average 1.323076923076923) internal successors, (86), 73 states have internal predecessors, (86), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-16 01:00:46,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2021-12-16 01:00:46,814 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 19 [2021-12-16 01:00:46,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:46,814 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2021-12-16 01:00:46,814 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 01:00:46,815 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2021-12-16 01:00:46,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-16 01:00:46,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:46,816 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 01:00:46,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:00:46,817 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:46,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:46,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1880549764, now seen corresponding path program 1 times [2021-12-16 01:00:46,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:46,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869197993] [2021-12-16 01:00:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:46,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:46,898 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 01:00:46,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:46,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869197993] [2021-12-16 01:00:46,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869197993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:46,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:46,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:00:46,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704263888] [2021-12-16 01:00:46,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:46,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:46,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:46,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:46,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:46,904 INFO L87 Difference]: Start difference. First operand 84 states and 109 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 01:00:46,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:46,922 INFO L93 Difference]: Finished difference Result 130 states and 168 transitions. [2021-12-16 01:00:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:46,925 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 01:00:46,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:46,926 INFO L225 Difference]: With dead ends: 130 [2021-12-16 01:00:46,927 INFO L226 Difference]: Without dead ends: 75 [2021-12-16 01:00:46,927 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 01:00:46,929 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 16 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 171 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 01:00:46,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:46,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-16 01:00:46,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-12-16 01:00:46,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 67 states have internal predecessors, (79), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-16 01:00:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2021-12-16 01:00:46,937 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 20 [2021-12-16 01:00:46,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:46,938 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2021-12-16 01:00:46,938 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 01:00:46,938 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2021-12-16 01:00:46,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-16 01:00:46,941 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:46,941 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 01:00:46,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:00:46,942 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:46,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:46,943 INFO L85 PathProgramCache]: Analyzing trace with hash 612415945, now seen corresponding path program 1 times [2021-12-16 01:00:46,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:46,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240461019] [2021-12-16 01:00:46,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:46,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:46,994 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 01:00:46,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:46,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240461019] [2021-12-16 01:00:46,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240461019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:46,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:46,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:46,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503257129] [2021-12-16 01:00:46,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:46,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:46,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:46,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:46,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:46,996 INFO L87 Difference]: Start difference. First operand 75 states and 97 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 01:00:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:47,022 INFO L93 Difference]: Finished difference Result 210 states and 277 transitions. [2021-12-16 01:00:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:47,022 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 01:00:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:47,024 INFO L225 Difference]: With dead ends: 210 [2021-12-16 01:00:47,024 INFO L226 Difference]: Without dead ends: 142 [2021-12-16 01:00:47,025 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 01:00:47,026 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 77 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 202 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 01:00:47,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 202 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-12-16 01:00:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2021-12-16 01:00:47,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 108 states have (on average 1.3611111111111112) internal successors, (147), 123 states have internal predecessors, (147), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 11 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-16 01:00:47,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2021-12-16 01:00:47,047 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 24 [2021-12-16 01:00:47,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:47,047 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2021-12-16 01:00:47,047 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 01:00:47,048 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2021-12-16 01:00:47,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 01:00:47,049 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:47,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:47,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:00:47,049 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:47,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:47,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1477369919, now seen corresponding path program 1 times [2021-12-16 01:00:47,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:47,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686763450] [2021-12-16 01:00:47,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:47,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:47,116 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 01:00:47,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:47,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686763450] [2021-12-16 01:00:47,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686763450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:47,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:47,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:00:47,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990861741] [2021-12-16 01:00:47,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:47,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:00:47,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:47,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:00:47,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:00:47,118 INFO L87 Difference]: Start difference. First operand 139 states and 183 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 01:00:47,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:47,233 INFO L93 Difference]: Finished difference Result 391 states and 534 transitions. [2021-12-16 01:00:47,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:47,233 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 01:00:47,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:47,242 INFO L225 Difference]: With dead ends: 391 [2021-12-16 01:00:47,242 INFO L226 Difference]: Without dead ends: 259 [2021-12-16 01:00:47,243 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 01:00:47,245 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 68 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:47,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 381 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:00:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-12-16 01:00:47,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2021-12-16 01:00:47,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 200 states have (on average 1.34) internal successors, (268), 227 states have internal predecessors, (268), 36 states have call successors, (36), 24 states have call predecessors, (36), 22 states have return successors, (38), 20 states have call predecessors, (38), 36 states have call successors, (38) [2021-12-16 01:00:47,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 342 transitions. [2021-12-16 01:00:47,293 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 342 transitions. Word has length 28 [2021-12-16 01:00:47,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:47,294 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 342 transitions. [2021-12-16 01:00:47,294 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 01:00:47,294 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 342 transitions. [2021-12-16 01:00:47,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-16 01:00:47,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:47,300 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 01:00:47,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:00:47,300 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:47,301 INFO L85 PathProgramCache]: Analyzing trace with hash -30603644, now seen corresponding path program 1 times [2021-12-16 01:00:47,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:47,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368730438] [2021-12-16 01:00:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:47,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:47,360 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 01:00:47,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:47,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368730438] [2021-12-16 01:00:47,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368730438] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:47,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:47,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:47,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23656371] [2021-12-16 01:00:47,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:47,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:47,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:47,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:47,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:47,363 INFO L87 Difference]: Start difference. First operand 259 states and 342 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 01:00:47,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:47,410 INFO L93 Difference]: Finished difference Result 629 states and 851 transitions. [2021-12-16 01:00:47,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:47,412 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 01:00:47,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:47,418 INFO L225 Difference]: With dead ends: 629 [2021-12-16 01:00:47,418 INFO L226 Difference]: Without dead ends: 377 [2021-12-16 01:00:47,420 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 01:00:47,423 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 56 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:47,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 157 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-12-16 01:00:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-12-16 01:00:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 289 states have (on average 1.2975778546712802) internal successors, (375), 313 states have internal predecessors, (375), 41 states have call successors, (41), 39 states have call predecessors, (41), 37 states have return successors, (59), 36 states have call predecessors, (59), 41 states have call successors, (59) [2021-12-16 01:00:47,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 475 transitions. [2021-12-16 01:00:47,450 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 475 transitions. Word has length 30 [2021-12-16 01:00:47,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:47,450 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 475 transitions. [2021-12-16 01:00:47,451 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 01:00:47,451 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 475 transitions. [2021-12-16 01:00:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-16 01:00:47,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:47,452 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 01:00:47,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:00:47,453 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:47,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:47,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1736818085, now seen corresponding path program 1 times [2021-12-16 01:00:47,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:47,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7300727] [2021-12-16 01:00:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:47,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:47,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:47,574 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 01:00:47,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:47,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7300727] [2021-12-16 01:00:47,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7300727] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:47,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:47,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:00:47,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889102783] [2021-12-16 01:00:47,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:47,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 01:00:47,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 01:00:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-16 01:00:47,579 INFO L87 Difference]: Start difference. First operand 368 states and 475 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 01:00:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:48,066 INFO L93 Difference]: Finished difference Result 892 states and 1226 transitions. [2021-12-16 01:00:48,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 01:00:48,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-16 01:00:48,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:48,071 INFO L225 Difference]: With dead ends: 892 [2021-12-16 01:00:48,071 INFO L226 Difference]: Without dead ends: 685 [2021-12-16 01:00:48,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2021-12-16 01:00:48,073 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 283 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:48,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 473 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:00:48,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-12-16 01:00:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 651. [2021-12-16 01:00:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 512 states have (on average 1.283203125) internal successors, (657), 562 states have internal predecessors, (657), 67 states have call successors, (67), 57 states have call predecessors, (67), 71 states have return successors, (145), 65 states have call predecessors, (145), 67 states have call successors, (145) [2021-12-16 01:00:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 869 transitions. [2021-12-16 01:00:48,115 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 869 transitions. Word has length 32 [2021-12-16 01:00:48,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:48,115 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 869 transitions. [2021-12-16 01:00:48,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 01:00:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 869 transitions. [2021-12-16 01:00:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-16 01:00:48,117 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:48,117 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:48,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:00:48,118 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:48,118 INFO L85 PathProgramCache]: Analyzing trace with hash -205074430, now seen corresponding path program 1 times [2021-12-16 01:00:48,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:48,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870008234] [2021-12-16 01:00:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:48,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 01:00:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:48,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 01:00:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-16 01:00:48,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:48,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870008234] [2021-12-16 01:00:48,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870008234] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:48,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678212954] [2021-12-16 01:00:48,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:48,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:48,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:48,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 01:00:48,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 01:00:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:48,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-16 01:00:48,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 01:00:48,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 01:00:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:48,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678212954] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 01:00:48,831 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 01:00:48,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2021-12-16 01:00:48,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666457679] [2021-12-16 01:00:48,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 01:00:48,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-16 01:00:48,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:48,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-16 01:00:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-12-16 01:00:48,834 INFO L87 Difference]: Start difference. First operand 651 states and 869 transitions. Second operand has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-16 01:00:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:50,343 INFO L93 Difference]: Finished difference Result 1694 states and 2333 transitions. [2021-12-16 01:00:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-12-16 01:00:50,343 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 53 [2021-12-16 01:00:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:50,350 INFO L225 Difference]: With dead ends: 1694 [2021-12-16 01:00:50,350 INFO L226 Difference]: Without dead ends: 1212 [2021-12-16 01:00:50,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=713, Invalid=2947, Unknown=0, NotChecked=0, Total=3660 [2021-12-16 01:00:50,355 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 764 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:50,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [773 Valid, 1337 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-16 01:00:50,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2021-12-16 01:00:50,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1034. [2021-12-16 01:00:50,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 810 states have (on average 1.271604938271605) internal successors, (1030), 881 states have internal predecessors, (1030), 103 states have call successors, (103), 95 states have call predecessors, (103), 120 states have return successors, (237), 102 states have call predecessors, (237), 103 states have call successors, (237) [2021-12-16 01:00:50,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1370 transitions. [2021-12-16 01:00:50,434 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1370 transitions. Word has length 53 [2021-12-16 01:00:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:50,435 INFO L470 AbstractCegarLoop]: Abstraction has 1034 states and 1370 transitions. [2021-12-16 01:00:50,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-16 01:00:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1370 transitions. [2021-12-16 01:00:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-16 01:00:50,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:50,437 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:50,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 01:00:50,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:50,660 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:50,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash 724618409, now seen corresponding path program 1 times [2021-12-16 01:00:50,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:50,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259201304] [2021-12-16 01:00:50,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:50,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:50,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:50,735 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:50,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:50,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259201304] [2021-12-16 01:00:50,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259201304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:50,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:50,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:00:50,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662254729] [2021-12-16 01:00:50,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:50,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:50,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:50,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:50,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:00:50,737 INFO L87 Difference]: Start difference. First operand 1034 states and 1370 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 01:00:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:50,915 INFO L93 Difference]: Finished difference Result 1266 states and 1666 transitions. [2021-12-16 01:00:50,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 01:00:50,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2021-12-16 01:00:50,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:50,918 INFO L225 Difference]: With dead ends: 1266 [2021-12-16 01:00:50,918 INFO L226 Difference]: Without dead ends: 552 [2021-12-16 01:00:50,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-16 01:00:50,921 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 245 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:50,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 271 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:00:50,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2021-12-16 01:00:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 476. [2021-12-16 01:00:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 374 states have (on average 1.2272727272727273) internal successors, (459), 406 states have internal predecessors, (459), 45 states have call successors, (45), 43 states have call predecessors, (45), 56 states have return successors, (108), 44 states have call predecessors, (108), 45 states have call successors, (108) [2021-12-16 01:00:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 612 transitions. [2021-12-16 01:00:50,955 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 612 transitions. Word has length 65 [2021-12-16 01:00:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:50,955 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 612 transitions. [2021-12-16 01:00:50,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 01:00:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 612 transitions. [2021-12-16 01:00:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-16 01:00:50,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:50,957 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:50,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 01:00:50,957 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:50,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:50,957 INFO L85 PathProgramCache]: Analyzing trace with hash 57479151, now seen corresponding path program 1 times [2021-12-16 01:00:50,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:50,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735527362] [2021-12-16 01:00:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:50,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:50,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 01:00:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 01:00:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-16 01:00:51,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:51,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735527362] [2021-12-16 01:00:51,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735527362] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:51,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775317715] [2021-12-16 01:00:51,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:51,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:51,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:51,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 01:00:51,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 01:00:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 01:00:51,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-16 01:00:51,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 01:00:51,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775317715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:51,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 01:00:51,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2021-12-16 01:00:51,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227477318] [2021-12-16 01:00:51,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:51,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 01:00:51,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:51,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 01:00:51,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:00:51,217 INFO L87 Difference]: Start difference. First operand 476 states and 612 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:51,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:51,249 INFO L93 Difference]: Finished difference Result 945 states and 1257 transitions. [2021-12-16 01:00:51,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 01:00:51,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 76 [2021-12-16 01:00:51,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:51,253 INFO L225 Difference]: With dead ends: 945 [2021-12-16 01:00:51,253 INFO L226 Difference]: Without dead ends: 476 [2021-12-16 01:00:51,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:00:51,257 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 25 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:51,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 261 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:51,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-12-16 01:00:51,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2021-12-16 01:00:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 374 states have (on average 1.2165775401069518) internal successors, (455), 406 states have internal predecessors, (455), 45 states have call successors, (45), 43 states have call predecessors, (45), 56 states have return successors, (108), 44 states have call predecessors, (108), 45 states have call successors, (108) [2021-12-16 01:00:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 608 transitions. [2021-12-16 01:00:51,281 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 608 transitions. Word has length 76 [2021-12-16 01:00:51,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:51,282 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 608 transitions. [2021-12-16 01:00:51,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 608 transitions. [2021-12-16 01:00:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-16 01:00:51,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:51,283 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:51,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-16 01:00:51,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-16 01:00:51,504 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:51,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:51,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1480860879, now seen corresponding path program 1 times [2021-12-16 01:00:51,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:51,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440955368] [2021-12-16 01:00:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:51,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 01:00:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 01:00:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-16 01:00:51,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:51,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440955368] [2021-12-16 01:00:51,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440955368] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:51,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922329613] [2021-12-16 01:00:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:51,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:51,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:51,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 01:00:51,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 01:00:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:51,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-16 01:00:51,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:51,815 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-16 01:00:51,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 01:00:51,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922329613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:51,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 01:00:51,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2021-12-16 01:00:51,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871830792] [2021-12-16 01:00:51,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:51,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:00:51,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:51,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:00:51,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:00:51,817 INFO L87 Difference]: Start difference. First operand 476 states and 608 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:51,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:51,864 INFO L93 Difference]: Finished difference Result 877 states and 1197 transitions. [2021-12-16 01:00:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 01:00:51,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 76 [2021-12-16 01:00:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:51,867 INFO L225 Difference]: With dead ends: 877 [2021-12-16 01:00:51,867 INFO L226 Difference]: Without dead ends: 408 [2021-12-16 01:00:51,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:00:51,869 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 10 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:51,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 349 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:51,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-12-16 01:00:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 403. [2021-12-16 01:00:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 313 states have (on average 1.2044728434504792) internal successors, (377), 336 states have internal predecessors, (377), 42 states have call successors, (42), 40 states have call predecessors, (42), 47 states have return successors, (86), 39 states have call predecessors, (86), 42 states have call successors, (86) [2021-12-16 01:00:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 505 transitions. [2021-12-16 01:00:51,891 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 505 transitions. Word has length 76 [2021-12-16 01:00:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:51,892 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 505 transitions. [2021-12-16 01:00:51,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 505 transitions. [2021-12-16 01:00:51,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-16 01:00:51,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:51,893 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:51,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 01:00:52,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:52,121 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:52,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:52,122 INFO L85 PathProgramCache]: Analyzing trace with hash -572504429, now seen corresponding path program 1 times [2021-12-16 01:00:52,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:52,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346515622] [2021-12-16 01:00:52,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:52,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 01:00:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 01:00:52,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:52,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346515622] [2021-12-16 01:00:52,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346515622] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:52,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465362813] [2021-12-16 01:00:52,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:52,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:52,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:52,225 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 01:00:52,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 01:00:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 01:00:52,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:52,451 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:52,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 01:00:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 01:00:52,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465362813] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 01:00:52,612 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 01:00:52,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 11 [2021-12-16 01:00:52,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047307064] [2021-12-16 01:00:52,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 01:00:52,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 01:00:52,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 01:00:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-16 01:00:52,614 INFO L87 Difference]: Start difference. First operand 403 states and 505 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 01:00:53,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:53,127 INFO L93 Difference]: Finished difference Result 799 states and 1009 transitions. [2021-12-16 01:00:53,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-16 01:00:53,128 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2021-12-16 01:00:53,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:53,134 INFO L225 Difference]: With dead ends: 799 [2021-12-16 01:00:53,134 INFO L226 Difference]: Without dead ends: 445 [2021-12-16 01:00:53,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 170 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:00:53,136 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 334 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:53,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 550 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:00:53,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-12-16 01:00:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 397. [2021-12-16 01:00:53,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 307 states have (on average 1.1954397394136809) internal successors, (367), 330 states have internal predecessors, (367), 42 states have call successors, (42), 40 states have call predecessors, (42), 47 states have return successors, (86), 39 states have call predecessors, (86), 42 states have call successors, (86) [2021-12-16 01:00:53,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 495 transitions. [2021-12-16 01:00:53,154 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 495 transitions. Word has length 80 [2021-12-16 01:00:53,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:53,155 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 495 transitions. [2021-12-16 01:00:53,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 01:00:53,155 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 495 transitions. [2021-12-16 01:00:53,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-16 01:00:53,159 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:53,160 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 01:00:53,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 01:00:53,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:53,375 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:53,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:53,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1682583131, now seen corresponding path program 2 times [2021-12-16 01:00:53,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:53,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437287973] [2021-12-16 01:00:53,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:53,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 01:00:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 01:00:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 01:00:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 01:00:53,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:53,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437287973] [2021-12-16 01:00:53,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437287973] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:53,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006560880] [2021-12-16 01:00:53,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 01:00:53,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:53,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:53,530 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 01:00:53,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 01:00:53,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 01:00:53,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 01:00:53,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-16 01:00:53,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 01:00:53,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 01:00:53,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006560880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:53,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 01:00:53,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-12-16 01:00:53,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058865871] [2021-12-16 01:00:53,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:53,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:53,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:53,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:53,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-16 01:00:53,885 INFO L87 Difference]: Start difference. First operand 397 states and 495 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-16 01:00:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:54,111 INFO L93 Difference]: Finished difference Result 1089 states and 1410 transitions. [2021-12-16 01:00:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 01:00:54,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 114 [2021-12-16 01:00:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:54,115 INFO L225 Difference]: With dead ends: 1089 [2021-12-16 01:00:54,115 INFO L226 Difference]: Without dead ends: 740 [2021-12-16 01:00:54,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 126 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-12-16 01:00:54,118 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 239 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:54,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 474 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:00:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-12-16 01:00:54,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 682. [2021-12-16 01:00:54,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 529 states have (on average 1.1871455576559546) internal successors, (628), 561 states have internal predecessors, (628), 73 states have call successors, (73), 71 states have call predecessors, (73), 79 states have return successors, (135), 67 states have call predecessors, (135), 73 states have call successors, (135) [2021-12-16 01:00:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 836 transitions. [2021-12-16 01:00:54,169 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 836 transitions. Word has length 114 [2021-12-16 01:00:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:54,170 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 836 transitions. [2021-12-16 01:00:54,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-16 01:00:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 836 transitions. [2021-12-16 01:00:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-16 01:00:54,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:54,173 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:54,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 01:00:54,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-16 01:00:54,387 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:54,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:54,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2126483805, now seen corresponding path program 1 times [2021-12-16 01:00:54,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:54,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672563059] [2021-12-16 01:00:54,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:54,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 01:00:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 01:00:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 01:00:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,485 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-16 01:00:54,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:54,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672563059] [2021-12-16 01:00:54,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672563059] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:54,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260513562] [2021-12-16 01:00:54,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:54,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:54,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:54,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 01:00:54,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 01:00:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-16 01:00:54,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:54,781 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 01:00:54,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 01:00:54,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260513562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:54,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 01:00:54,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-12-16 01:00:54,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2954140] [2021-12-16 01:00:54,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:54,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:00:54,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:54,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:00:54,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:00:54,784 INFO L87 Difference]: Start difference. First operand 682 states and 836 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-16 01:00:54,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:54,817 INFO L93 Difference]: Finished difference Result 922 states and 1120 transitions. [2021-12-16 01:00:54,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:54,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 114 [2021-12-16 01:00:54,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:54,819 INFO L225 Difference]: With dead ends: 922 [2021-12-16 01:00:54,819 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 01:00:54,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-12-16 01:00:54,822 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 24 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:54,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 336 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:54,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 01:00:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 01:00:54,823 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 01:00:54,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 01:00:54,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2021-12-16 01:00:54,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:54,823 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 01:00:54,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-16 01:00:54,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 01:00:54,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 01:00:54,826 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 01:00:54,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-16 01:00:55,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:55,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-16 01:00:57,516 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 309 316) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= ~systemActive~0 1))) (or (= 0 ~systemActive~0) (not (<= 1 ~waterLevel~0)) .cse0))) [2021-12-16 01:00:57,516 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 309 316) no Hoare annotation was computed. [2021-12-16 01:00:57,516 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 309 316) no Hoare annotation was computed. [2021-12-16 01:00:57,516 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 224 230) no Hoare annotation was computed. [2021-12-16 01:00:57,516 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 224 230) the Hoare annotation is: true [2021-12-16 01:00:57,516 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 549 560) the Hoare annotation is: true [2021-12-16 01:00:57,516 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 549 560) no Hoare annotation was computed. [2021-12-16 01:00:57,516 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 549 560) no Hoare annotation was computed. [2021-12-16 01:00:57,516 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-12-16 01:00:57,516 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 428 457) no Hoare annotation was computed. [2021-12-16 01:00:57,516 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 428 457) the Hoare annotation is: true [2021-12-16 01:00:57,517 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 446) no Hoare annotation was computed. [2021-12-16 01:00:57,517 INFO L861 garLoopResultBuilder]: At program point L442-1(lines 442 446) the Hoare annotation is: true [2021-12-16 01:00:57,517 INFO L858 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2021-12-16 01:00:57,517 INFO L861 garLoopResultBuilder]: At program point L438-2(lines 438 452) the Hoare annotation is: true [2021-12-16 01:00:57,517 INFO L861 garLoopResultBuilder]: At program point L434(line 434) the Hoare annotation is: true [2021-12-16 01:00:57,517 INFO L858 garLoopResultBuilder]: For program point L434-1(line 434) no Hoare annotation was computed. [2021-12-16 01:00:57,517 INFO L861 garLoopResultBuilder]: At program point L453(lines 428 457) the Hoare annotation is: true [2021-12-16 01:00:57,517 INFO L854 garLoopResultBuilder]: At program point L407(lines 392 410) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) .cse1) (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:00:57,517 INFO L858 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2021-12-16 01:00:57,517 INFO L854 garLoopResultBuilder]: At program point L333(lines 328 336) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~systemActive~0 1))) (.cse3 (not (<= 1 |old(~waterLevel~0)|)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) .cse1 .cse2) (or .cse1 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2021-12-16 01:00:57,517 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 200 223) no Hoare annotation was computed. [2021-12-16 01:00:57,518 INFO L854 garLoopResultBuilder]: At program point L631(lines 626 633) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or .cse1 (not (= ~systemActive~0 0))) (or .cse1 .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:00:57,518 INFO L854 garLoopResultBuilder]: At program point L598(lines 593 601) the Hoare annotation is: (let ((.cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (not (= ~systemActive~0 0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse1 .cse4 .cse5) .cse0 .cse2 .cse6) (let ((.cse8 (<= 1 |timeShift_getWaterLevel_#res#1|))) (or .cse7 (and (<= 2 ~waterLevel~0) .cse8) (and (<= 1 ~waterLevel~0) .cse8 .cse5) .cse6)) (or (and .cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse2 .cse3) (or .cse7 (not (= |timeShift_getWaterLevel_#res#1| 0)) .cse2 .cse3) (or .cse7 .cse4 .cse2 .cse6))) [2021-12-16 01:00:57,518 INFO L854 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or .cse1 (not (= ~systemActive~0 0))) (or .cse1 .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:00:57,518 INFO L854 garLoopResultBuilder]: At program point L268(line 268) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |timeShift_processEnvironment_~tmp~3#1|) (<= 1 ~waterLevel~0) (= |timeShift_isLowWaterLevel_~tmp~6#1| 0)) .cse1))) [2021-12-16 01:00:57,518 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 109) no Hoare annotation was computed. [2021-12-16 01:00:57,518 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 112) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L854 garLoopResultBuilder]: At program point L99-1(lines 91 115) the Hoare annotation is: (let ((.cse9 (not (= ~systemActive~0 0))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~0#1| 1)) (.cse6 (= |timeShift_getWaterLevel_#res#1| 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse10 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~systemActive~0 1)))) (and (let ((.cse1 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~0#1|)) (.cse2 (<= 1 |timeShift_getWaterLevel_#res#1|))) (or .cse0 (and .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3) (and (<= 2 ~waterLevel~0) .cse1 .cse2) .cse4)) (or (and .cse5 .cse6) .cse7 .cse8 .cse9) (or .cse0 .cse8 (and (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~0#1| 0)) (not (= |timeShift_getWaterLevel_#res#1| 0))) .cse9) (or (and .cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse8 .cse9) (or .cse7 .cse8 (and .cse5 .cse6 .cse10 .cse3) .cse4) (or .cse0 .cse10 .cse8 .cse4))) [2021-12-16 01:00:57,519 INFO L854 garLoopResultBuilder]: At program point L277(line 277) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse0) .cse1 .cse2 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse2))) [2021-12-16 01:00:57,519 INFO L854 garLoopResultBuilder]: At program point L277-1(lines 258 282) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0))) (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse1 .cse2) (and .cse1 .cse3) .cse0 .cse4 (not (<= 1 |old(~waterLevel~0)|)))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (<= 1 ~waterLevel~0) .cse3) .cse2 .cse4))) [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 211 217) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 405) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L854 garLoopResultBuilder]: At program point L529-2(lines 525 536) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse1) (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 401 405) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 200 223) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (not (= ~systemActive~0 1))) (.cse2 (and .cse0 (= ~pumpRunning~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse3 .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse2 .cse3 (not (= ~systemActive~0 0)))))) [2021-12-16 01:00:57,519 INFO L854 garLoopResultBuilder]: At program point L621(lines 616 624) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse0) (or .cse1 (not (= ~systemActive~0 0))) (or .cse1 .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 203 222) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 200 223) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 274) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 279) no Hoare annotation was computed. [2021-12-16 01:00:57,519 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 421) no Hoare annotation was computed. [2021-12-16 01:00:57,520 INFO L858 garLoopResultBuilder]: For program point L415-1(lines 415 421) no Hoare annotation was computed. [2021-12-16 01:00:57,520 INFO L854 garLoopResultBuilder]: At program point L180(lines 131 181) the Hoare annotation is: false [2021-12-16 01:00:57,520 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 174) no Hoare annotation was computed. [2021-12-16 01:00:57,520 INFO L854 garLoopResultBuilder]: At program point L486(lines 482 488) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:57,520 INFO L854 garLoopResultBuilder]: At program point L168-2(lines 162 175) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 0) .cse2) (and .cse0 (<= 1 ~waterLevel~0) .cse1 .cse2))) [2021-12-16 01:00:57,520 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-16 01:00:57,520 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-16 01:00:57,520 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-16 01:00:57,521 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 158) no Hoare annotation was computed. [2021-12-16 01:00:57,521 INFO L858 garLoopResultBuilder]: For program point L152-1(lines 152 158) no Hoare annotation was computed. [2021-12-16 01:00:57,521 INFO L854 garLoopResultBuilder]: At program point L177(lines 132 179) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 0) .cse2) (and .cse0 (<= 1 ~waterLevel~0) .cse1 .cse2))) [2021-12-16 01:00:57,521 INFO L854 garLoopResultBuilder]: At program point L144(line 144) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 0) .cse2) (and .cse0 (= ~waterLevel~0 1) .cse1 .cse2))) [2021-12-16 01:00:57,521 INFO L854 garLoopResultBuilder]: At program point L417(line 417) the Hoare annotation is: (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~waterLevel~0 1) .cse1) (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 1)))) [2021-12-16 01:00:57,521 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-16 01:00:57,521 INFO L854 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:57,522 INFO L861 garLoopResultBuilder]: At program point L496(lines 489 498) the Hoare annotation is: true [2021-12-16 01:00:57,522 INFO L854 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:57,522 INFO L858 garLoopResultBuilder]: For program point L133(lines 132 179) no Hoare annotation was computed. [2021-12-16 01:00:57,522 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 175) no Hoare annotation was computed. [2021-12-16 01:00:57,522 INFO L858 garLoopResultBuilder]: For program point L509(lines 509 516) no Hoare annotation was computed. [2021-12-16 01:00:57,522 INFO L858 garLoopResultBuilder]: For program point L509-2(lines 509 516) no Hoare annotation was computed. [2021-12-16 01:00:57,522 INFO L854 garLoopResultBuilder]: At program point L154(line 154) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 0) .cse2) (and .cse0 (<= 1 ~waterLevel~0) .cse1 .cse2))) [2021-12-16 01:00:57,523 INFO L861 garLoopResultBuilder]: At program point L183(lines 122 187) the Hoare annotation is: true [2021-12-16 01:00:57,523 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 148) no Hoare annotation was computed. [2021-12-16 01:00:57,523 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2021-12-16 01:00:57,523 INFO L854 garLoopResultBuilder]: At program point L423(lines 411 425) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~systemActive~0 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:57,523 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 138) no Hoare annotation was computed. [2021-12-16 01:00:57,523 INFO L861 garLoopResultBuilder]: At program point L518(lines 499 521) the Hoare annotation is: true [2021-12-16 01:00:57,523 INFO L854 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:57,523 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 232 256) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:57,524 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 386) no Hoare annotation was computed. [2021-12-16 01:00:57,524 INFO L858 garLoopResultBuilder]: For program point L382-2(lines 382 386) no Hoare annotation was computed. [2021-12-16 01:00:57,524 INFO L854 garLoopResultBuilder]: At program point L566(lines 561 569) the Hoare annotation is: (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-16 01:00:57,524 INFO L854 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (let ((.cse0 (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0)) (.cse1 (= ~pumpRunning~0 0))) (or (not (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~5#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) .cse0 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse1) (not (= ~systemActive~0 1)))) [2021-12-16 01:00:57,524 INFO L858 garLoopResultBuilder]: For program point L240(lines 240 248) no Hoare annotation was computed. [2021-12-16 01:00:57,524 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 253) no Hoare annotation was computed. [2021-12-16 01:00:57,524 INFO L854 garLoopResultBuilder]: At program point L288(lines 283 290) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-16 01:00:57,525 INFO L858 garLoopResultBuilder]: For program point L606(lines 606 612) no Hoare annotation was computed. [2021-12-16 01:00:57,525 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 232 256) no Hoare annotation was computed. [2021-12-16 01:00:57,525 INFO L854 garLoopResultBuilder]: At program point L251(line 251) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-16 01:00:57,525 INFO L858 garLoopResultBuilder]: For program point L251-1(lines 232 256) no Hoare annotation was computed. [2021-12-16 01:00:57,525 INFO L858 garLoopResultBuilder]: For program point L299(lines 299 305) no Hoare annotation was computed. [2021-12-16 01:00:57,525 INFO L854 garLoopResultBuilder]: At program point L299-2(lines 292 308) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-16 01:00:57,525 INFO L854 garLoopResultBuilder]: At program point L388(lines 373 391) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0) (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~5#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0) (not (= ~systemActive~0 1)))) [2021-12-16 01:00:57,525 INFO L854 garLoopResultBuilder]: At program point L324(lines 317 327) the Hoare annotation is: (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-16 01:00:57,526 INFO L854 garLoopResultBuilder]: At program point L611(lines 602 615) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= ~waterLevel~0 1)) .cse0 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse1) (or (not (<= 1 ~waterLevel~0)) .cse0 .cse1 (= ~pumpRunning~0 0)))) [2021-12-16 01:00:57,526 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 537 548) no Hoare annotation was computed. [2021-12-16 01:00:57,526 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 537 548) no Hoare annotation was computed. [2021-12-16 01:00:57,526 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 537 548) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2))) [2021-12-16 01:00:57,529 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:57,530 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 01:00:57,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:00:57 BoogieIcfgContainer [2021-12-16 01:00:57,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 01:00:57,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 01:00:57,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 01:00:57,552 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 01:00:57,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:46" (3/4) ... [2021-12-16 01:00:57,555 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 01:00:57,560 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-16 01:00:57,560 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-16 01:00:57,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-16 01:00:57,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-16 01:00:57,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-16 01:00:57,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:00:57,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-16 01:00:57,567 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-12-16 01:00:57,568 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-16 01:00:57,569 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-16 01:00:57,569 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-16 01:00:57,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 01:00:57,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:00:57,571 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:00:57,589 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-16 01:00:57,590 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(systemActive == 0)) && (((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || (1 <= waterLevel && pumpRunning == 0)) || 2 <= waterLevel) || !(systemActive == 1)) [2021-12-16 01:00:57,590 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && (((((\result == 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(2 <= \old(waterLevel)) || (2 <= waterLevel && 1 <= \result)) || ((1 <= waterLevel && 1 <= \result) && pumpRunning == 0)) || !(systemActive == 1))) && (((waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(2 <= \old(waterLevel)) || !(\result == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(2 <= \old(waterLevel)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) [2021-12-16 01:00:57,591 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(2 <= \old(waterLevel)) || (((1 <= tmp && 1 <= waterLevel) && 1 <= \result) && pumpRunning == 0)) || ((2 <= waterLevel && 1 <= tmp) && 1 <= \result)) || !(systemActive == 1)) && ((((tmp == 1 && \result == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(2 <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || (!(tmp == 0) && !(\result == 0))) || !(systemActive == 0))) && (((waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 0)) || (((tmp == 1 && \result == 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(systemActive == 1))) && (((!(2 <= \old(waterLevel)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) [2021-12-16 01:00:57,591 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(2 <= \old(waterLevel)) || ((\result == 0 && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) || !(systemActive == 1)) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-16 01:00:57,591 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 1 <= \result) || !(systemActive == 1)) && (((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || pumpRunning == 0) [2021-12-16 01:00:57,591 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((((\result == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-16 01:00:57,592 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (((((1 <= tmp___0 && 1 <= \result) && \result == 0) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel) && tmp == 0)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-16 01:00:57,592 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || ((((1 <= tmp && \result == 0) && tmp___0 == 0) && 1 <= \result) && pumpRunning == 0)) || !(systemActive == 1) [2021-12-16 01:00:57,592 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(2 <= \old(waterLevel)) || !(systemActive == 1)) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-16 01:00:57,592 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) [2021-12-16 01:00:57,592 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) [2021-12-16 01:00:57,593 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) [2021-12-16 01:00:57,593 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) [2021-12-16 01:00:57,613 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 01:00:57,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 01:00:57,614 INFO L158 Benchmark]: Toolchain (without parser) took 12384.76ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 62.1MB in the beginning and 108.8MB in the end (delta: -46.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2021-12-16 01:00:57,614 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 71.3MB. Free memory was 47.3MB in the beginning and 47.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:00:57,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.46ms. Allocated memory is still 96.5MB. Free memory was 61.8MB in the beginning and 42.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-16 01:00:57,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.50ms. Allocated memory is still 96.5MB. Free memory was 42.9MB in the beginning and 40.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:57,615 INFO L158 Benchmark]: Boogie Preprocessor took 40.07ms. Allocated memory is still 96.5MB. Free memory was 40.4MB in the beginning and 74.9MB in the end (delta: -34.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-16 01:00:57,615 INFO L158 Benchmark]: RCFGBuilder took 520.16ms. Allocated memory is still 96.5MB. Free memory was 74.9MB in the beginning and 58.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-16 01:00:57,615 INFO L158 Benchmark]: TraceAbstraction took 11289.43ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 57.9MB in the beginning and 116.2MB in the end (delta: -58.3MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2021-12-16 01:00:57,616 INFO L158 Benchmark]: Witness Printer took 60.96ms. Allocated memory is still 172.0MB. Free memory was 116.2MB in the beginning and 108.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-16 01:00:57,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 71.3MB. Free memory was 47.3MB in the beginning and 47.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.46ms. Allocated memory is still 96.5MB. Free memory was 61.8MB in the beginning and 42.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.50ms. Allocated memory is still 96.5MB. Free memory was 42.9MB in the beginning and 40.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.07ms. Allocated memory is still 96.5MB. Free memory was 40.4MB in the beginning and 74.9MB in the end (delta: -34.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * RCFGBuilder took 520.16ms. Allocated memory is still 96.5MB. Free memory was 74.9MB in the beginning and 58.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11289.43ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 57.9MB in the beginning and 116.2MB in the end (delta: -58.3MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. * Witness Printer took 60.96ms. Allocated memory is still 172.0MB. Free memory was 116.2MB in the beginning and 108.8MB in the end (delta: 7.3MB). 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: 630]: 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 8 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2174 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2141 mSDsluCounter, 5080 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3535 mSDsCounter, 543 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2468 IncrementalHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 543 mSolverCounterUnsat, 1545 mSDtfsCounter, 2468 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 885 GetRequests, 718 SyntacticMatches, 6 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1387 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1034occurred in iteration=7, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 411 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 2258 PreInvPairs, 2424 NumberOfFragments, 1202 HoareAnnotationTreeSize, 2258 FomulaSimplifications, 2723 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 44 FomulaSimplificationsInter, 9052 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1244 NumberOfCodeBlocks, 1244 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1356 ConstructedInterpolants, 0 QuantifiedInterpolants, 2513 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2691 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 455/504 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: 131]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(systemActive == 0)) && (((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || (1 <= waterLevel && pumpRunning == 0)) || 2 <= waterLevel) || !(systemActive == 1)) - InvariantResult [Line: 499]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && (((((\result == 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(2 <= \old(waterLevel)) || (2 <= waterLevel && 1 <= \result)) || ((1 <= waterLevel && 1 <= \result) && pumpRunning == 0)) || !(systemActive == 1))) && (((waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(2 <= \old(waterLevel)) || !(\result == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(2 <= \old(waterLevel)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: (((((((!(2 <= \old(waterLevel)) || (((1 <= tmp && 1 <= waterLevel) && 1 <= \result) && pumpRunning == 0)) || ((2 <= waterLevel && 1 <= tmp) && 1 <= \result)) || !(systemActive == 1)) && ((((tmp == 1 && \result == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(2 <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || (!(tmp == 0) && !(\result == 0))) || !(systemActive == 0))) && (((waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 0)) || (((tmp == 1 && \result == 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(systemActive == 1))) && (((!(2 <= \old(waterLevel)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 411]: Loop Invariant Derived loop invariant: (splverifierCounter == 0 && systemActive == 0) && pumpRunning == 0 - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || ((((1 <= tmp && \result == 0) && tmp___0 == 0) && 1 <= \result) && pumpRunning == 0)) || !(systemActive == 1) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && 2 <= waterLevel) && systemActive == 1) || ((splverifierCounter == 0 && systemActive == 0) && pumpRunning == 0)) || (((splverifierCounter == 0 && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 1 <= \result) || !(systemActive == 1)) && (((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || pumpRunning == 0) - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((!(2 <= \old(waterLevel)) || ((\result == 0 && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) || !(systemActive == 1)) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 482]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (((((1 <= tmp___0 && 1 <= \result) && \result == 0) && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel) && tmp == 0)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 626]: Loop Invariant Derived loop invariant: ((!(2 <= \old(waterLevel)) || !(systemActive == 1)) && (!(\old(pumpRunning) == 0) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: (((!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((((\result == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2021-12-16 01:00:57,679 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