./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product61.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_product61.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 a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:00:49,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:00:49,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:00:49,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:00:49,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:00:49,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:00:49,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:00:49,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:00:49,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:00:49,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:00:49,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:00:49,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:00:49,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:00:49,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:00:49,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:00:49,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:00:49,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:00:49,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:00:49,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:00:49,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:00:49,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:00:49,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:00:49,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:00:49,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:00:49,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:00:49,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:00:49,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:00:49,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:00:49,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:00:49,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:00:49,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:00:49,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:00:49,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:00:49,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:00:49,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:00:49,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:00:49,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:00:49,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:00:49,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:00:49,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:00:49,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:00:49,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:00:49,820 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:00:49,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:00:49,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:00:49,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:00:49,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:00:49,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:00:49,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:00:49,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:00:49,822 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:00:49,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:00:49,823 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:00:49,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:00:49,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:00:49,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:00:49,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:00:49,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:00:49,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:00:49,824 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:00:49,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:00:49,825 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:00:49,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:00:49,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:00:49,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:00:49,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:00:49,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:49,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:00:49,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:00:49,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:00:49,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:00:49,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:00:49,826 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:00:49,827 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:00:49,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:00:49,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:00:49,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2021-12-16 01:00:50,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:00:50,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:00:50,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:00:50,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:00:50,044 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:00:50,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2021-12-16 01:00:50,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89c092f7/e602b49ae5044c8ca5c16f29243afe1d/FLAG20c2f5e35 [2021-12-16 01:00:50,494 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:00:50,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2021-12-16 01:00:50,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89c092f7/e602b49ae5044c8ca5c16f29243afe1d/FLAG20c2f5e35 [2021-12-16 01:00:50,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89c092f7/e602b49ae5044c8ca5c16f29243afe1d [2021-12-16 01:00:50,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:00:50,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:00:50,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:50,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:00:50,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:00:50,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:50" (1/1) ... [2021-12-16 01:00:50,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5276e20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:50, skipping insertion in model container [2021-12-16 01:00:50,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:50" (1/1) ... [2021-12-16 01:00:50,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:00:50,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:00:50,739 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_product61.cil.c[1605,1618] [2021-12-16 01:00:50,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:50,992 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:00:51,013 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_product61.cil.c[1605,1618] [2021-12-16 01:00:51,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:51,117 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:00:51,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51 WrapperNode [2021-12-16 01:00:51,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:51,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:51,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:00:51,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:00:51,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,185 INFO L137 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 289 [2021-12-16 01:00:51,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:51,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:00:51,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:00:51,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:00:51,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:00:51,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:00:51,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:00:51,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:00:51,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (1/1) ... [2021-12-16 01:00:51,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:51,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:51,337 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 01:00:51,340 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 01:00:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:00:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-16 01:00:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-16 01:00:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-16 01:00:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-16 01:00:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-16 01:00:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-16 01:00:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:00:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:00:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-16 01:00:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-16 01:00:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-16 01:00:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-16 01:00:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-16 01:00:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-16 01:00:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-16 01:00:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-16 01:00:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:00:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-16 01:00:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-16 01:00:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:00:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:00:51,510 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:00:51,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:00:52,019 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:00:52,030 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:00:52,031 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 01:00:52,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:52 BoogieIcfgContainer [2021-12-16 01:00:52,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:00:52,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:00:52,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:00:52,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:00:52,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:00:50" (1/3) ... [2021-12-16 01:00:52,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9c560f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:52, skipping insertion in model container [2021-12-16 01:00:52,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:51" (2/3) ... [2021-12-16 01:00:52,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9c560f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:52, skipping insertion in model container [2021-12-16 01:00:52,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:52" (3/3) ... [2021-12-16 01:00:52,042 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2021-12-16 01:00:52,045 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:00:52,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:00:52,111 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:00:52,117 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 01:00:52,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:00:52,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-16 01:00:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 01:00:52,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:52,158 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 01:00:52,158 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:52,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash 332135154, now seen corresponding path program 1 times [2021-12-16 01:00:52,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:52,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132224123] [2021-12-16 01:00:52,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:52,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,322 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 01:00:52,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:52,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132224123] [2021-12-16 01:00:52,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132224123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:52,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:52,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:52,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924814093] [2021-12-16 01:00:52,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:52,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 01:00:52,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:52,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 01:00:52,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:00:52,356 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) 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 01:00:52,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:52,404 INFO L93 Difference]: Finished difference Result 198 states and 269 transitions. [2021-12-16 01:00:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 01:00:52,405 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 01:00:52,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:52,413 INFO L225 Difference]: With dead ends: 198 [2021-12-16 01:00:52,413 INFO L226 Difference]: Without dead ends: 94 [2021-12-16 01:00:52,417 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 01:00:52,419 INFO L933 BasicCegarLoop]: 131 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, 131 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 01:00:52,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-12-16 01:00:52,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-12-16 01:00:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.318840579710145) internal successors, (91), 78 states have internal predecessors, (91), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2021-12-16 01:00:52,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2021-12-16 01:00:52,464 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 19 [2021-12-16 01:00:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:52,465 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2021-12-16 01:00:52,465 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 01:00:52,465 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2021-12-16 01:00:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-16 01:00:52,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:52,470 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 01:00:52,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:00:52,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:52,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:52,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2057254746, now seen corresponding path program 1 times [2021-12-16 01:00:52,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:52,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644463875] [2021-12-16 01:00:52,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:52,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,551 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 01:00:52,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:52,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644463875] [2021-12-16 01:00:52,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644463875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:52,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:52,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:00:52,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803901346] [2021-12-16 01:00:52,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:52,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:52,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:52,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:52,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:52,556 INFO L87 Difference]: Start difference. First operand 94 states and 122 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 01:00:52,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:52,576 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2021-12-16 01:00:52,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:52,576 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 01:00:52,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:52,578 INFO L225 Difference]: With dead ends: 154 [2021-12-16 01:00:52,578 INFO L226 Difference]: Without dead ends: 85 [2021-12-16 01:00:52,578 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 01:00:52,579 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 202 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 01:00:52,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 202 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-12-16 01:00:52,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-12-16 01:00:52,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 72 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-16 01:00:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2021-12-16 01:00:52,588 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 20 [2021-12-16 01:00:52,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:52,588 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2021-12-16 01:00:52,588 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 01:00:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2021-12-16 01:00:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-16 01:00:52,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:52,590 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 01:00:52,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:00:52,590 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:52,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:52,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1387625524, now seen corresponding path program 1 times [2021-12-16 01:00:52,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:52,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289072221] [2021-12-16 01:00:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:52,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,678 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 01:00:52,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:52,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289072221] [2021-12-16 01:00:52,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289072221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:52,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:52,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 01:00:52,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895221397] [2021-12-16 01:00:52,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:52,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:52,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:52,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:52,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:00:52,681 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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 01:00:52,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:52,748 INFO L93 Difference]: Finished difference Result 163 states and 214 transitions. [2021-12-16 01:00:52,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:52,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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 01:00:52,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:52,749 INFO L225 Difference]: With dead ends: 163 [2021-12-16 01:00:52,749 INFO L226 Difference]: Without dead ends: 85 [2021-12-16 01:00:52,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 01:00:52,751 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 136 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:52,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 231 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:52,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-12-16 01:00:52,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-12-16 01:00:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 72 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-16 01:00:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2021-12-16 01:00:52,814 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 24 [2021-12-16 01:00:52,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:52,815 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2021-12-16 01:00:52,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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 01:00:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2021-12-16 01:00:52,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-16 01:00:52,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:52,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:52,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:00:52,817 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:52,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash 610675451, now seen corresponding path program 1 times [2021-12-16 01:00:52,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:52,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585222793] [2021-12-16 01:00:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:52,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 01:00:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:52,901 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 01:00:52,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:52,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585222793] [2021-12-16 01:00:52,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585222793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:52,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:52,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:00:52,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998887965] [2021-12-16 01:00:52,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:52,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 01:00:52,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:52,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 01:00:52,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 01:00:52,903 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 01:00:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:53,038 INFO L93 Difference]: Finished difference Result 238 states and 306 transitions. [2021-12-16 01:00:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:53,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2021-12-16 01:00:53,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:53,040 INFO L225 Difference]: With dead ends: 238 [2021-12-16 01:00:53,040 INFO L226 Difference]: Without dead ends: 160 [2021-12-16 01:00:53,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:00:53,042 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 153 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:53,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 200 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:00:53,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-16 01:00:53,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2021-12-16 01:00:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 126 states have internal predecessors, (149), 16 states have call successors, (16), 15 states have call predecessors, (16), 20 states have return successors, (27), 18 states have call predecessors, (27), 16 states have call successors, (27) [2021-12-16 01:00:53,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 192 transitions. [2021-12-16 01:00:53,062 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 192 transitions. Word has length 37 [2021-12-16 01:00:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:53,062 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 192 transitions. [2021-12-16 01:00:53,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 01:00:53,063 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 192 transitions. [2021-12-16 01:00:53,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-16 01:00:53,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:53,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:53,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:00:53,064 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:53,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:53,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1599675381, now seen corresponding path program 1 times [2021-12-16 01:00:53,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:53,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165922030] [2021-12-16 01:00:53,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:53,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:00:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,142 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 01:00:53,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:53,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165922030] [2021-12-16 01:00:53,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165922030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:53,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:53,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:00:53,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670168476] [2021-12-16 01:00:53,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:53,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:53,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:53,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:53,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:00:53,144 INFO L87 Difference]: Start difference. First operand 154 states and 192 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 01:00:53,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:53,315 INFO L93 Difference]: Finished difference Result 387 states and 502 transitions. [2021-12-16 01:00:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 01:00:53,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2021-12-16 01:00:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:53,317 INFO L225 Difference]: With dead ends: 387 [2021-12-16 01:00:53,317 INFO L226 Difference]: Without dead ends: 240 [2021-12-16 01:00:53,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-16 01:00:53,318 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 155 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:53,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 354 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:00:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-12-16 01:00:53,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2021-12-16 01:00:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 181 states have (on average 1.2541436464088398) internal successors, (227), 193 states have internal predecessors, (227), 26 states have call successors, (26), 25 states have call predecessors, (26), 30 states have return successors, (45), 28 states have call predecessors, (45), 26 states have call successors, (45) [2021-12-16 01:00:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 298 transitions. [2021-12-16 01:00:53,357 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 298 transitions. Word has length 45 [2021-12-16 01:00:53,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:53,357 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 298 transitions. [2021-12-16 01:00:53,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 01:00:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 298 transitions. [2021-12-16 01:00:53,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-16 01:00:53,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:53,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:53,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:00:53,359 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:53,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash 414561125, now seen corresponding path program 1 times [2021-12-16 01:00:53,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:53,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944991455] [2021-12-16 01:00:53,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:53,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 01:00:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:00:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,521 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 01:00:53,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:53,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944991455] [2021-12-16 01:00:53,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944991455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:53,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:53,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:00:53,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894685653] [2021-12-16 01:00:53,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:53,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 01:00:53,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:53,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 01:00:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:00:53,524 INFO L87 Difference]: Start difference. First operand 238 states and 298 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:53,903 INFO L93 Difference]: Finished difference Result 319 states and 399 transitions. [2021-12-16 01:00:53,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-16 01:00:53,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2021-12-16 01:00:53,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:53,906 INFO L225 Difference]: With dead ends: 319 [2021-12-16 01:00:53,906 INFO L226 Difference]: Without dead ends: 317 [2021-12-16 01:00:53,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2021-12-16 01:00:53,907 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 232 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:53,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 418 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:00:53,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-12-16 01:00:53,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 269. [2021-12-16 01:00:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 204 states have (on average 1.2401960784313726) internal successors, (253), 221 states have internal predecessors, (253), 30 states have call successors, (30), 25 states have call predecessors, (30), 34 states have return successors, (55), 31 states have call predecessors, (55), 30 states have call successors, (55) [2021-12-16 01:00:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 338 transitions. [2021-12-16 01:00:53,923 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 338 transitions. Word has length 49 [2021-12-16 01:00:53,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:53,924 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 338 transitions. [2021-12-16 01:00:53,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:53,924 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 338 transitions. [2021-12-16 01:00:53,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-16 01:00:53,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:53,925 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, 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 01:00:53,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:00:53,925 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:53,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:53,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1510129521, now seen corresponding path program 1 times [2021-12-16 01:00:53,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:53,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692654264] [2021-12-16 01:00:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:53,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 01:00:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:00:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:53,993 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 01:00:53,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:53,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692654264] [2021-12-16 01:00:53,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692654264] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:53,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:53,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:00:53,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615112211] [2021-12-16 01:00:53,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:53,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 01:00:53,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:53,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 01:00:53,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:00:53,994 INFO L87 Difference]: Start difference. First operand 269 states and 338 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:54,207 INFO L93 Difference]: Finished difference Result 571 states and 745 transitions. [2021-12-16 01:00:54,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 01:00:54,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-12-16 01:00:54,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:54,209 INFO L225 Difference]: With dead ends: 571 [2021-12-16 01:00:54,209 INFO L226 Difference]: Without dead ends: 309 [2021-12-16 01:00:54,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:00:54,210 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 158 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:54,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 354 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:00:54,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-12-16 01:00:54,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 275. [2021-12-16 01:00:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 210 states have (on average 1.2333333333333334) internal successors, (259), 227 states have internal predecessors, (259), 30 states have call successors, (30), 25 states have call predecessors, (30), 34 states have return successors, (55), 31 states have call predecessors, (55), 30 states have call successors, (55) [2021-12-16 01:00:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 344 transitions. [2021-12-16 01:00:54,223 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 344 transitions. Word has length 55 [2021-12-16 01:00:54,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:54,224 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 344 transitions. [2021-12-16 01:00:54,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 344 transitions. [2021-12-16 01:00:54,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-16 01:00:54,225 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:54,225 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, 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 01:00:54,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 01:00:54,225 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:54,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:54,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1644143027, now seen corresponding path program 1 times [2021-12-16 01:00:54,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:54,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789609238] [2021-12-16 01:00:54,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:54,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 01:00:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:00:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,289 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 01:00:54,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:54,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789609238] [2021-12-16 01:00:54,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789609238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:54,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:54,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:00:54,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936232594] [2021-12-16 01:00:54,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:54,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:54,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:54,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:00:54,291 INFO L87 Difference]: Start difference. First operand 275 states and 344 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:54,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:54,443 INFO L93 Difference]: Finished difference Result 533 states and 685 transitions. [2021-12-16 01:00:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 01:00:54,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-12-16 01:00:54,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:54,446 INFO L225 Difference]: With dead ends: 533 [2021-12-16 01:00:54,446 INFO L226 Difference]: Without dead ends: 265 [2021-12-16 01:00:54,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:00:54,447 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 164 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:54,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 291 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:00:54,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-12-16 01:00:54,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 214. [2021-12-16 01:00:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 162 states have (on average 1.228395061728395) internal successors, (199), 175 states have internal predecessors, (199), 25 states have call successors, (25), 21 states have call predecessors, (25), 26 states have return successors, (41), 24 states have call predecessors, (41), 25 states have call successors, (41) [2021-12-16 01:00:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 265 transitions. [2021-12-16 01:00:54,456 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 265 transitions. Word has length 55 [2021-12-16 01:00:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:54,456 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 265 transitions. [2021-12-16 01:00:54,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 265 transitions. [2021-12-16 01:00:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-16 01:00:54,457 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:54,457 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, 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 01:00:54,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 01:00:54,457 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:54,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1582103413, now seen corresponding path program 1 times [2021-12-16 01:00:54,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:54,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421842840] [2021-12-16 01:00:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:54,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 01:00:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:00:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:54,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:54,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421842840] [2021-12-16 01:00:54,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421842840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:54,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:54,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:00:54,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448440258] [2021-12-16 01:00:54,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:54,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 01:00:54,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:54,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 01:00:54,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:00:54,536 INFO L87 Difference]: Start difference. First operand 214 states and 265 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:54,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:54,845 INFO L93 Difference]: Finished difference Result 481 states and 634 transitions. [2021-12-16 01:00:54,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 01:00:54,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-12-16 01:00:54,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:54,848 INFO L225 Difference]: With dead ends: 481 [2021-12-16 01:00:54,848 INFO L226 Difference]: Without dead ends: 319 [2021-12-16 01:00:54,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-12-16 01:00:54,851 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 227 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:54,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 465 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:00:54,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-12-16 01:00:54,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 308. [2021-12-16 01:00:54,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 235 states have (on average 1.2085106382978723) internal successors, (284), 251 states have internal predecessors, (284), 35 states have call successors, (35), 30 states have call predecessors, (35), 37 states have return successors, (72), 37 states have call predecessors, (72), 35 states have call successors, (72) [2021-12-16 01:00:54,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 391 transitions. [2021-12-16 01:00:54,890 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 391 transitions. Word has length 55 [2021-12-16 01:00:54,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:54,890 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 391 transitions. [2021-12-16 01:00:54,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 01:00:54,891 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 391 transitions. [2021-12-16 01:00:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-16 01:00:54,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:54,893 INFO L514 BasicCegarLoop]: trace histogram [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, 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 01:00:54,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 01:00:54,893 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:54,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:54,894 INFO L85 PathProgramCache]: Analyzing trace with hash -493181504, now seen corresponding path program 1 times [2021-12-16 01:00:54,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:54,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184973919] [2021-12-16 01:00:54,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:54,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:00:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 01:00:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 01:00:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:00:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-16 01:00:55,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:55,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184973919] [2021-12-16 01:00:55,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184973919] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:55,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833484906] [2021-12-16 01:00:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:55,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:55,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:55,073 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 01:00:55,074 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 01:00:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:55,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 01:00:55,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:55,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 01:00:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-16 01:00:55,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833484906] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 01:00:55,608 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 01:00:55,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2021-12-16 01:00:55,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310303901] [2021-12-16 01:00:55,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 01:00:55,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:00:55,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:55,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:00:55,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:00:55,609 INFO L87 Difference]: Start difference. First operand 308 states and 391 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 01:00:56,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:56,117 INFO L93 Difference]: Finished difference Result 731 states and 982 transitions. [2021-12-16 01:00:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-16 01:00:56,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 101 [2021-12-16 01:00:56,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:56,120 INFO L225 Difference]: With dead ends: 731 [2021-12-16 01:00:56,120 INFO L226 Difference]: Without dead ends: 475 [2021-12-16 01:00:56,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 223 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2021-12-16 01:00:56,122 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 376 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:56,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 526 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:00:56,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-12-16 01:00:56,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 425. [2021-12-16 01:00:56,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 320 states have (on average 1.215625) internal successors, (389), 343 states have internal predecessors, (389), 51 states have call successors, (51), 44 states have call predecessors, (51), 53 states have return successors, (111), 50 states have call predecessors, (111), 51 states have call successors, (111) [2021-12-16 01:00:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 551 transitions. [2021-12-16 01:00:56,140 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 551 transitions. Word has length 101 [2021-12-16 01:00:56,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:56,140 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 551 transitions. [2021-12-16 01:00:56,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 01:00:56,141 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 551 transitions. [2021-12-16 01:00:56,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-16 01:00:56,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:56,142 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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] [2021-12-16 01:00:56,178 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 01:00:56,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-16 01:00:56,360 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:56,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:56,361 INFO L85 PathProgramCache]: Analyzing trace with hash -879070667, now seen corresponding path program 2 times [2021-12-16 01:00:56,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:56,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059372555] [2021-12-16 01:00:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:56,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:00:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 01:00:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 01:00:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 01:00:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:00:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 01:00:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 01:00:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:00:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 01:00:56,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:56,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059372555] [2021-12-16 01:00:56,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059372555] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:56,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326027708] [2021-12-16 01:00:56,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 01:00:56,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:56,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:56,548 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 01:00:56,563 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 01:00:56,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 01:00:56,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 01:00:56,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-16 01:00:56,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-16 01:00:56,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 01:00:56,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326027708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:56,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 01:00:56,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 15 [2021-12-16 01:00:56,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382007151] [2021-12-16 01:00:56,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:56,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:56,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:56,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:56,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-12-16 01:00:56,860 INFO L87 Difference]: Start difference. First operand 425 states and 551 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 01:00:57,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:57,161 INFO L93 Difference]: Finished difference Result 1140 states and 1546 transitions. [2021-12-16 01:00:57,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 01:00:57,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 147 [2021-12-16 01:00:57,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:57,165 INFO L225 Difference]: With dead ends: 1140 [2021-12-16 01:00:57,165 INFO L226 Difference]: Without dead ends: 766 [2021-12-16 01:00:57,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 171 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2021-12-16 01:00:57,166 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 186 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:57,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 721 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:00:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-12-16 01:00:57,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 739. [2021-12-16 01:00:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 556 states have (on average 1.20863309352518) internal successors, (672), 587 states have internal predecessors, (672), 85 states have call successors, (85), 79 states have call predecessors, (85), 97 states have return successors, (179), 90 states have call predecessors, (179), 85 states have call successors, (179) [2021-12-16 01:00:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 936 transitions. [2021-12-16 01:00:57,215 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 936 transitions. Word has length 147 [2021-12-16 01:00:57,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:57,216 INFO L470 AbstractCegarLoop]: Abstraction has 739 states and 936 transitions. [2021-12-16 01:00:57,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 01:00:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 936 transitions. [2021-12-16 01:00:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-16 01:00:57,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:57,219 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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] [2021-12-16 01:00:57,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 01:00:57,436 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,SelfDestructingSolverStorable10 [2021-12-16 01:00:57,436 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2095224393, now seen corresponding path program 1 times [2021-12-16 01:00:57,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:57,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558227767] [2021-12-16 01:00:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:57,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 01:00:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 01:00:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:00:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 01:00:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 01:00:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 01:00:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:00:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 01:00:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 01:00:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:00:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:00:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,543 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-12-16 01:00:57,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:57,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558227767] [2021-12-16 01:00:57,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558227767] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:00:57,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606057923] [2021-12-16 01:00:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:57,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:57,545 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 01:00:57,546 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 01:00:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:57,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-16 01:00:57,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:00:57,877 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-16 01:00:57,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 01:00:57,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606057923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:57,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 01:00:57,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 10 [2021-12-16 01:00:57,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132092709] [2021-12-16 01:00:57,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:57,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:00:57,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:57,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:00:57,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 01:00:57,880 INFO L87 Difference]: Start difference. First operand 739 states and 936 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 01:00:57,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:57,927 INFO L93 Difference]: Finished difference Result 1010 states and 1267 transitions. [2021-12-16 01:00:57,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:57,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 147 [2021-12-16 01:00:57,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:57,928 INFO L225 Difference]: With dead ends: 1010 [2021-12-16 01:00:57,928 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 01:00:57,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:00:57,930 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 9 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 411 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 01:00:57,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 411 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 01:00:57,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 01:00:57,931 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 01:00:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 01:00:57,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2021-12-16 01:00:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:57,931 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 01:00:57,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 01:00:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 01:00:57,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 01:00:57,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 01:00:57,967 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 01:00:58,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:00:58,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-16 01:01:00,442 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 245 252) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~systemActive~0 1))) [2021-12-16 01:01:00,442 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 245 252) no Hoare annotation was computed. [2021-12-16 01:01:00,442 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 245 252) no Hoare annotation was computed. [2021-12-16 01:01:00,442 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 135 141) no Hoare annotation was computed. [2021-12-16 01:01:00,442 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 135 141) the Hoare annotation is: true [2021-12-16 01:01:00,442 INFO L858 garLoopResultBuilder]: For program point L447-1(lines 443 454) no Hoare annotation was computed. [2021-12-16 01:01:00,442 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 443 454) the Hoare annotation is: true [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 443 454) no Hoare annotation was computed. [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 913 942) no Hoare annotation was computed. [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point L927(lines 927 931) no Hoare annotation was computed. [2021-12-16 01:01:00,443 INFO L861 garLoopResultBuilder]: At program point L927-1(lines 927 931) the Hoare annotation is: true [2021-12-16 01:01:00,443 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 913 942) the Hoare annotation is: true [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point L924(line 924) no Hoare annotation was computed. [2021-12-16 01:01:00,443 INFO L861 garLoopResultBuilder]: At program point L923-2(lines 923 937) the Hoare annotation is: true [2021-12-16 01:01:00,443 INFO L861 garLoopResultBuilder]: At program point L919(line 919) the Hoare annotation is: true [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point L919-1(line 919) no Hoare annotation was computed. [2021-12-16 01:01:00,443 INFO L861 garLoopResultBuilder]: At program point L938(lines 913 942) the Hoare annotation is: true [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point L934(line 934) no Hoare annotation was computed. [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point L122-1(lines 122 128) no Hoare annotation was computed. [2021-12-16 01:01:00,443 INFO L854 garLoopResultBuilder]: At program point L209(line 209) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:01:00,443 INFO L854 garLoopResultBuilder]: At program point L205(line 205) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:01:00,443 INFO L854 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point L201-1(line 201) no Hoare annotation was computed. [2021-12-16 01:01:00,443 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 111 134) no Hoare annotation was computed. [2021-12-16 01:01:00,444 INFO L854 garLoopResultBuilder]: At program point L214(line 214) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse0) (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1))) [2021-12-16 01:01:00,444 INFO L854 garLoopResultBuilder]: At program point L214-1(lines 195 219) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse0 .cse1) (and .cse0 .cse2) (not (= |old(~pumpRunning~0)| 0)) .cse3 (not (<= 1 |old(~waterLevel~0)|)))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (<= 1 ~waterLevel~0) .cse2) .cse1 .cse3))) [2021-12-16 01:01:00,444 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 538) no Hoare annotation was computed. [2021-12-16 01:01:00,444 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 114 133) no Hoare annotation was computed. [2021-12-16 01:01:00,444 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 541) no Hoare annotation was computed. [2021-12-16 01:01:00,444 INFO L854 garLoopResultBuilder]: At program point L528-1(lines 520 544) the Hoare annotation is: (let ((.cse6 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (<= 2 ~waterLevel~0)) (.cse8 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|)) (.cse9 (= ~systemActive~0 1))) (let ((.cse2 (and .cse6 .cse4 .cse7 .cse8 .cse9)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (not .cse9))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5) .cse1 .cse2 .cse3 (not (<= 1 |old(~waterLevel~0)|))) (or (and (= |timeShift_getWaterLevel_#res#1| 1) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1)) (not (= |old(~waterLevel~0)| 1)) .cse1 .cse3) (or .cse0 (and .cse6 .cse7 .cse8) (and (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) .cse5) .cse3)))) [2021-12-16 01:01:00,444 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-12-16 01:01:00,444 INFO L854 garLoopResultBuilder]: At program point L269(lines 264 272) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:01:00,444 INFO L854 garLoopResultBuilder]: At program point L492(lines 487 495) the Hoare annotation is: (let ((.cse2 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (<= 2 ~waterLevel~0))) (let ((.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (and .cse2 .cse7 .cse3)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 (and (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) .cse1) (and .cse2 .cse3) .cse4) (or .cse0 .cse5 .cse6 .cse4) (or (and .cse7 .cse1) .cse5 .cse6 .cse4 (not (<= 1 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1) .cse6 .cse4)))) [2021-12-16 01:01:00,444 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 211) no Hoare annotation was computed. [2021-12-16 01:01:00,444 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 216) no Hoare annotation was computed. [2021-12-16 01:01:00,444 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:01:00,444 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 111 134) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse1) (or (and .cse0 (= ~pumpRunning~0 0)) (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:01:00,444 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 111 134) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L854 garLoopResultBuilder]: At program point L423-2(lines 419 430) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-16 01:01:00,445 INFO L854 garLoopResultBuilder]: At program point L407(lines 360 408) the Hoare annotation is: false [2021-12-16 01:01:00,445 INFO L861 garLoopResultBuilder]: At program point L981(lines 974 983) the Hoare annotation is: true [2021-12-16 01:01:00,445 INFO L854 garLoopResultBuilder]: At program point L77(lines 73 79) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point L362(lines 361 406) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 402) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point L994(lines 994 1001) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point L994-2(lines 994 1001) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L854 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~11#1|)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3 (= ~pumpRunning~0 0)))) [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L854 garLoopResultBuilder]: At program point L404(lines 361 406) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~11#1|)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3 (= ~pumpRunning~0 0)))) [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 377) no Hoare annotation was computed. [2021-12-16 01:01:00,445 INFO L858 garLoopResultBuilder]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2021-12-16 01:01:00,446 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 367) no Hoare annotation was computed. [2021-12-16 01:01:00,446 INFO L861 garLoopResultBuilder]: At program point L1003(lines 984 1006) the Hoare annotation is: true [2021-12-16 01:01:00,446 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-16 01:01:00,446 INFO L858 garLoopResultBuilder]: For program point L397(lines 397 401) no Hoare annotation was computed. [2021-12-16 01:01:00,446 INFO L854 garLoopResultBuilder]: At program point L971(lines 967 973) the Hoare annotation is: (and (= ~systemActive~0 |ULTIMATE.start_main_~tmp~11#1|) (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|) (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:00,446 INFO L854 garLoopResultBuilder]: At program point L397-2(lines 391 402) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~11#1|)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3 (= ~pumpRunning~0 0)))) [2021-12-16 01:01:00,446 INFO L858 garLoopResultBuilder]: For program point L381(lines 381 387) no Hoare annotation was computed. [2021-12-16 01:01:00,446 INFO L854 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|) (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:00,446 INFO L858 garLoopResultBuilder]: For program point L381-1(lines 381 387) no Hoare annotation was computed. [2021-12-16 01:01:00,446 INFO L861 garLoopResultBuilder]: At program point L410(lines 351 414) the Hoare annotation is: true [2021-12-16 01:01:00,446 INFO L854 garLoopResultBuilder]: At program point L373(line 373) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 |ULTIMATE.start_main_~tmp~11#1|)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~systemActive~0 |ULTIMATE.start_valid_product_#res#1|)) (.cse3 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3 (= ~pumpRunning~0 0)))) [2021-12-16 01:01:00,446 INFO L854 garLoopResultBuilder]: At program point L84(lines 80 86) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:00,446 INFO L854 garLoopResultBuilder]: At program point L225(lines 220 227) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 1))) [2021-12-16 01:01:00,446 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 143 167) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2021-12-16 01:01:00,446 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-12-16 01:01:00,447 INFO L854 garLoopResultBuilder]: At program point L157(line 157) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1| 1)) (not (= ~waterLevel~0 1)) .cse0 .cse1) (or (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) (= ~pumpRunning~0 0)) (not (<= 1 ~waterLevel~0)) .cse0 .cse1))) [2021-12-16 01:01:00,447 INFO L858 garLoopResultBuilder]: For program point L318-2(lines 318 322) no Hoare annotation was computed. [2021-12-16 01:01:00,447 INFO L858 garLoopResultBuilder]: For program point L151(lines 151 159) no Hoare annotation was computed. [2021-12-16 01:01:00,447 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 506) no Hoare annotation was computed. [2021-12-16 01:01:00,447 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 164) no Hoare annotation was computed. [2021-12-16 01:01:00,447 INFO L854 garLoopResultBuilder]: At program point L162(line 162) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-16 01:01:00,451 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 143 167) no Hoare annotation was computed. [2021-12-16 01:01:00,452 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 143 167) no Hoare annotation was computed. [2021-12-16 01:01:00,452 INFO L854 garLoopResultBuilder]: At program point L505(lines 496 509) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= ~waterLevel~0 1)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1) .cse0) .cse1 .cse2) (or .cse1 .cse2 (not (<= 2 ~waterLevel~0)) .cse0))) [2021-12-16 01:01:00,452 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2021-12-16 01:01:00,452 INFO L854 garLoopResultBuilder]: At program point L233(line 233) 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 01:01:00,453 INFO L854 garLoopResultBuilder]: At program point L235-2(lines 228 244) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 1))) [2021-12-16 01:01:00,453 INFO L858 garLoopResultBuilder]: For program point L233-1(line 233) no Hoare annotation was computed. [2021-12-16 01:01:00,453 INFO L854 garLoopResultBuilder]: At program point L324(lines 309 327) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= ~waterLevel~0 1)) .cse0 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) .cse1) (or (not (<= 1 ~waterLevel~0)) .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1))) [2021-12-16 01:01:00,453 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 431 442) no Hoare annotation was computed. [2021-12-16 01:01:00,453 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 431 442) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1))) [2021-12-16 01:01:00,453 INFO L858 garLoopResultBuilder]: For program point L435-1(lines 431 442) no Hoare annotation was computed. [2021-12-16 01:01:00,454 INFO L854 garLoopResultBuilder]: At program point L188(line 188) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) (not (<= 1 ~waterLevel~0)) (not (= ~systemActive~0 1))) [2021-12-16 01:01:00,454 INFO L858 garLoopResultBuilder]: For program point L188-1(lines 169 193) no Hoare annotation was computed. [2021-12-16 01:01:00,454 INFO L854 garLoopResultBuilder]: At program point L343(lines 328 346) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or (and (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~1#1|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~5#1| 0)) .cse0 .cse1))) [2021-12-16 01:01:00,454 INFO L858 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2021-12-16 01:01:00,454 INFO L858 garLoopResultBuilder]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2021-12-16 01:01:00,455 INFO L854 garLoopResultBuilder]: At program point L515(lines 510 518) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or (and (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2021-12-16 01:01:00,455 INFO L854 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= ~systemActive~0 1))) [2021-12-16 01:01:00,455 INFO L854 garLoopResultBuilder]: At program point L179(line 179) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or (and (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~1#1|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~5#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~1#1|)) .cse0 .cse1))) [2021-12-16 01:01:00,455 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 185) no Hoare annotation was computed. [2021-12-16 01:01:00,455 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 169 193) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~systemActive~0 1))) [2021-12-16 01:01:00,455 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 190) no Hoare annotation was computed. [2021-12-16 01:01:00,455 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 169 193) no Hoare annotation was computed. [2021-12-16 01:01:00,455 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 253 263) the Hoare annotation is: true [2021-12-16 01:01:00,456 INFO L861 garLoopResultBuilder]: At program point L460(lines 455 463) the Hoare annotation is: true [2021-12-16 01:01:00,456 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 253 263) no Hoare annotation was computed. [2021-12-16 01:01:00,456 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 253 263) no Hoare annotation was computed. [2021-12-16 01:01:00,458 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:01:00,459 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 01:01:00,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:01:00 BoogieIcfgContainer [2021-12-16 01:01:00,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 01:01:00,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 01:01:00,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 01:01:00,502 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 01:01:00,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:52" (3/4) ... [2021-12-16 01:01:00,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 01:01:00,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-16 01:01:00,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-16 01:01:00,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-16 01:01:00,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-16 01:01:00,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-16 01:01:00,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:01:00,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-16 01:01:00,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-16 01:01:00,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-16 01:01:00,531 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-12-16 01:01:00,531 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-16 01:01:00,532 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-16 01:01:00,532 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-16 01:01:00,532 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 01:01:00,533 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:01:00,533 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:01:00,554 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((systemActive == \result && waterLevel == 1) && systemActive == 1) && pumpRunning == 0 [2021-12-16 01:01:00,556 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((systemActive == tmp && systemActive == \result) && waterLevel == 1) && systemActive == 1) && pumpRunning == 0 [2021-12-16 01:01:00,556 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((systemActive == tmp && splverifierCounter == 0) && systemActive == \result) && 2 <= waterLevel) && systemActive == 1) || (((((systemActive == tmp && splverifierCounter == 0) && systemActive == \result) && waterLevel == 1) && systemActive == 1) && pumpRunning == 0) [2021-12-16 01:01:00,561 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-16 01:01:00,562 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((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 01:01:00,563 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(2 <= \old(waterLevel)) || ((1 <= waterLevel && 1 <= \result) && pumpRunning == 0)) || (2 <= \result && 2 <= waterLevel)) || !(systemActive == 1)) && (((!(2 <= \old(waterLevel)) || ((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((((waterLevel == \old(waterLevel) && pumpRunning == 0) || ((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) [2021-12-16 01:01:00,563 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(2 <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || ((((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel) && 2 <= tmp) && systemActive == 1)) || !(systemActive == 1)) && (((((waterLevel == \old(waterLevel) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) || ((((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel) && 2 <= tmp) && systemActive == 1)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && ((((\result == 1 && tmp == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(2 <= \old(waterLevel)) || ((2 <= \result && 2 <= waterLevel) && 2 <= tmp)) || (((1 <= tmp && 1 <= waterLevel) && 1 <= \result) && pumpRunning == 0)) || !(systemActive == 1)) [2021-12-16 01:01:00,563 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((\result == 0 && pumpRunning == \old(pumpRunning)) || !(1 <= waterLevel)) || !(systemActive == 1)) [2021-12-16 01:01:00,563 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-16 01:01:00,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) [2021-12-16 01:01:00,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || (\result == 1 && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(2 <= waterLevel)) || pumpRunning == 0) [2021-12-16 01:01:00,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) [2021-12-16 01:01:00,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && ((((((1 <= \result && \result == 0) && 1 <= tmp___0) && pumpRunning == \old(pumpRunning)) && tmp == 0) || !(1 <= waterLevel)) || !(systemActive == 1)) [2021-12-16 01:01:00,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-16 01:01:00,566 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((tmp___0 == 0 && \result == 1) && tmp == 1) && \result == 0)) || !(systemActive == 1)) && (((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || pumpRunning == \old(pumpRunning)) || !(systemActive == 1)) [2021-12-16 01:01:00,612 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 01:01:00,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 01:01:00,628 INFO L158 Benchmark]: Toolchain (without parser) took 10105.95ms. Allocated memory was 88.1MB in the beginning and 159.4MB in the end (delta: 71.3MB). Free memory was 66.1MB in the beginning and 75.3MB in the end (delta: -9.1MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2021-12-16 01:01:00,628 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 64.8MB in the beginning and 64.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:01:00,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.82ms. Allocated memory is still 88.1MB. Free memory was 65.9MB in the beginning and 55.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 01:01:00,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.72ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 53.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 01:01:00,629 INFO L158 Benchmark]: Boogie Preprocessor took 87.45ms. Allocated memory is still 88.1MB. Free memory was 53.1MB in the beginning and 51.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 01:01:00,629 INFO L158 Benchmark]: RCFGBuilder took 758.67ms. Allocated memory is still 88.1MB. Free memory was 51.5MB in the beginning and 34.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-16 01:01:00,630 INFO L158 Benchmark]: TraceAbstraction took 8465.62ms. Allocated memory was 88.1MB in the beginning and 159.4MB in the end (delta: 71.3MB). Free memory was 33.9MB in the beginning and 82.6MB in the end (delta: -48.7MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2021-12-16 01:01:00,630 INFO L158 Benchmark]: Witness Printer took 125.15ms. Allocated memory is still 159.4MB. Free memory was 82.6MB in the beginning and 75.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-16 01:01:00,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 64.8MB in the beginning and 64.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.82ms. Allocated memory is still 88.1MB. Free memory was 65.9MB in the beginning and 55.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.72ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 53.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.45ms. Allocated memory is still 88.1MB. Free memory was 53.1MB in the beginning and 51.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 758.67ms. Allocated memory is still 88.1MB. Free memory was 51.5MB in the beginning and 34.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8465.62ms. Allocated memory was 88.1MB in the beginning and 159.4MB in the end (delta: 71.3MB). Free memory was 33.9MB in the beginning and 82.6MB in the end (delta: -48.7MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Witness Printer took 125.15ms. Allocated memory is still 159.4MB. Free memory was 82.6MB in the beginning and 75.3MB 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: 54]: 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 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1832 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1808 mSDsluCounter, 4304 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2910 mSDsCounter, 567 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2229 IncrementalHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 567 mSolverCounterUnsat, 1394 mSDtfsCounter, 2229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 775 GetRequests, 636 SyntacticMatches, 11 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=739occurred in iteration=11, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 229 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 1414 PreInvPairs, 1521 NumberOfFragments, 1098 HoareAnnotationTreeSize, 1414 FomulaSimplifications, 1670 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 48 FomulaSimplificationsInter, 7603 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1149 NumberOfCodeBlocks, 1149 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1234 ConstructedInterpolants, 0 QuantifiedInterpolants, 2171 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1678 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 434/492 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: 80]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: (((((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: 984]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && ((((((1 <= \result && \result == 0) && 1 <= tmp___0) && pumpRunning == \old(pumpRunning)) && tmp == 0) || !(1 <= waterLevel)) || !(systemActive == 1)) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || (\result == 1 && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(2 <= waterLevel)) || pumpRunning == 0) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((tmp___0 == 0 && \result == 1) && tmp == 1) && \result == 0)) || !(systemActive == 1)) && (((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || pumpRunning == \old(pumpRunning)) || !(systemActive == 1)) - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: (((systemActive == tmp && systemActive == \result) && waterLevel == 1) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 974]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: (((((!(2 <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || ((((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel) && 2 <= tmp) && systemActive == 1)) || !(systemActive == 1)) && (((((waterLevel == \old(waterLevel) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) || ((((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel) && 2 <= tmp) && systemActive == 1)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && ((((\result == 1 && tmp == 1) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(2 <= \old(waterLevel)) || ((2 <= \result && 2 <= waterLevel) && 2 <= tmp)) || (((1 <= tmp && 1 <= waterLevel) && 1 <= \result) && pumpRunning == 0)) || !(systemActive == 1)) - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: ((systemActive == \result && waterLevel == 1) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: (((((!(2 <= \old(waterLevel)) || ((1 <= waterLevel && 1 <= \result) && pumpRunning == 0)) || (2 <= \result && 2 <= waterLevel)) || !(systemActive == 1)) && (((!(2 <= \old(waterLevel)) || ((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((((waterLevel == \old(waterLevel) && pumpRunning == 0) || ((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: (!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: ((((systemActive == tmp && splverifierCounter == 0) && systemActive == \result) && 2 <= waterLevel) && systemActive == 1) || (((((systemActive == tmp && splverifierCounter == 0) && systemActive == \result) && waterLevel == 1) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((\result == 0 && pumpRunning == \old(pumpRunning)) || !(1 <= waterLevel)) || !(systemActive == 1)) - InvariantResult [Line: 923]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-16 01:01:00,697 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