./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product33.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_spec2_product33.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 6e02099a7691e56a2269c7f6adf0fcb5caba1ee7f52ae5d6ac320766d29d8d07 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 00:59:03,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 00:59:03,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 00:59:03,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 00:59:03,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 00:59:03,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 00:59:03,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 00:59:03,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 00:59:03,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 00:59:03,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 00:59:03,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 00:59:03,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 00:59:03,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 00:59:03,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 00:59:03,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 00:59:03,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 00:59:03,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 00:59:03,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 00:59:03,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 00:59:03,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 00:59:03,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 00:59:03,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 00:59:03,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 00:59:03,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 00:59:03,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 00:59:03,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 00:59:03,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 00:59:03,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 00:59:03,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 00:59:03,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 00:59:03,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 00:59:03,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 00:59:03,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 00:59:03,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 00:59:03,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 00:59:03,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 00:59:03,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 00:59:03,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 00:59:03,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 00:59:03,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 00:59:03,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 00:59:03,901 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 00:59:03,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 00:59:03,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 00:59:03,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 00:59:03,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 00:59:03,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 00:59:03,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 00:59:03,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 00:59:03,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 00:59:03,927 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 00:59:03,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 00:59:03,928 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 00:59:03,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 00:59:03,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 00:59:03,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 00:59:03,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 00:59:03,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 00:59:03,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 00:59:03,929 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 00:59:03,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 00:59:03,929 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 00:59:03,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 00:59:03,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 00:59:03,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 00:59:03,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 00:59:03,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:59:03,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 00:59:03,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 00:59:03,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 00:59:03,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 00:59:03,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 00:59:03,931 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 00:59:03,931 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 00:59:03,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 00:59:03,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 00:59:03,932 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e02099a7691e56a2269c7f6adf0fcb5caba1ee7f52ae5d6ac320766d29d8d07 [2021-12-16 00:59:04,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 00:59:04,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 00:59:04,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 00:59:04,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 00:59:04,177 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 00:59:04,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-12-16 00:59:04,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d140910ea/ed340f6354a6492ba76918d768fbea99/FLAGc93f7c65f [2021-12-16 00:59:04,632 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 00:59:04,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-12-16 00:59:04,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d140910ea/ed340f6354a6492ba76918d768fbea99/FLAGc93f7c65f [2021-12-16 00:59:04,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d140910ea/ed340f6354a6492ba76918d768fbea99 [2021-12-16 00:59:04,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 00:59:04,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 00:59:04,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 00:59:04,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 00:59:04,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 00:59:04,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:59:04" (1/1) ... [2021-12-16 00:59:04,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f27666c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:04, skipping insertion in model container [2021-12-16 00:59:04,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:59:04" (1/1) ... [2021-12-16 00:59:04,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 00:59:04,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 00:59:04,899 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_spec2_product33.cil.c[4842,4855] [2021-12-16 00:59:04,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:59:04,985 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 00:59:05,014 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_spec2_product33.cil.c[4842,4855] [2021-12-16 00:59:05,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:59:05,071 INFO L208 MainTranslator]: Completed translation [2021-12-16 00:59:05,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05 WrapperNode [2021-12-16 00:59:05,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 00:59:05,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 00:59:05,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 00:59:05,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 00:59:05,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,110 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 225 [2021-12-16 00:59:05,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 00:59:05,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 00:59:05,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 00:59:05,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 00:59:05,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 00:59:05,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 00:59:05,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 00:59:05,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 00:59:05,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (1/1) ... [2021-12-16 00:59:05,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:59:05,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:59:05,173 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 00:59:05,236 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 00:59:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 00:59:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-16 00:59:05,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-16 00:59:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-16 00:59:05,252 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-16 00:59:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-16 00:59:05,252 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-16 00:59:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-16 00:59:05,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-16 00:59:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-16 00:59:05,253 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-16 00:59:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 00:59:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-16 00:59:05,253 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-16 00:59:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 00:59:05,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 00:59:05,320 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 00:59:05,322 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 00:59:05,557 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 00:59:05,565 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 00:59:05,566 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 00:59:05,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:59:05 BoogieIcfgContainer [2021-12-16 00:59:05,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 00:59:05,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 00:59:05,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 00:59:05,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 00:59:05,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:59:04" (1/3) ... [2021-12-16 00:59:05,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b004a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:59:05, skipping insertion in model container [2021-12-16 00:59:05,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:59:05" (2/3) ... [2021-12-16 00:59:05,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b004a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:59:05, skipping insertion in model container [2021-12-16 00:59:05,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:59:05" (3/3) ... [2021-12-16 00:59:05,575 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2021-12-16 00:59:05,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 00:59:05,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 00:59:05,613 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 00:59:05,619 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 00:59:05,620 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 00:59:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-16 00:59:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-16 00:59:05,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:05,641 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] [2021-12-16 00:59:05,641 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:05,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash 233303130, now seen corresponding path program 1 times [2021-12-16 00:59:05,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:05,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884690480] [2021-12-16 00:59:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:05,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 00:59:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:05,841 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 00:59:05,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:05,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884690480] [2021-12-16 00:59:05,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884690480] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:05,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:05,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 00:59:05,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350313419] [2021-12-16 00:59:05,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:05,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 00:59:05,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:05,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 00:59:05,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 00:59:05,866 INFO L87 Difference]: Start difference. First operand has 76 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:05,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:05,889 INFO L93 Difference]: Finished difference Result 143 states and 196 transitions. [2021-12-16 00:59:05,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 00:59:05,891 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-16 00:59:05,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:05,898 INFO L225 Difference]: With dead ends: 143 [2021-12-16 00:59:05,898 INFO L226 Difference]: Without dead ends: 67 [2021-12-16 00:59:05,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 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 00:59:05,905 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:05,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:59:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-12-16 00:59:05,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-12-16 00:59:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 57 states have internal predecessors, (69), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-16 00:59:05,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2021-12-16 00:59:05,945 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 25 [2021-12-16 00:59:05,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:05,946 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2021-12-16 00:59:05,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:05,946 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2021-12-16 00:59:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-16 00:59:05,950 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:05,950 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] [2021-12-16 00:59:05,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 00:59:05,951 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:05,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:05,953 INFO L85 PathProgramCache]: Analyzing trace with hash 724752093, now seen corresponding path program 1 times [2021-12-16 00:59:05,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:05,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535519034] [2021-12-16 00:59:05,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:05,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 00:59:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,054 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 00:59:06,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:06,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535519034] [2021-12-16 00:59:06,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535519034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:06,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:06,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 00:59:06,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190557575] [2021-12-16 00:59:06,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:06,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:59:06,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:06,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:59:06,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 00:59:06,057 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:06,066 INFO L93 Difference]: Finished difference Result 99 states and 127 transitions. [2021-12-16 00:59:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:59:06,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-16 00:59:06,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:06,070 INFO L225 Difference]: With dead ends: 99 [2021-12-16 00:59:06,071 INFO L226 Difference]: Without dead ends: 58 [2021-12-16 00:59:06,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 00:59:06,072 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 12 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 130 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 00:59:06,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:59:06,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-12-16 00:59:06,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-12-16 00:59:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 51 states have internal predecessors, (62), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-16 00:59:06,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2021-12-16 00:59:06,082 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 26 [2021-12-16 00:59:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:06,083 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2021-12-16 00:59:06,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2021-12-16 00:59:06,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-16 00:59:06,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:06,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:59:06,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 00:59:06,085 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:06,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:06,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2055382337, now seen corresponding path program 1 times [2021-12-16 00:59:06,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:06,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116005807] [2021-12-16 00:59:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:06,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 00:59:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,185 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 00:59:06,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:06,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116005807] [2021-12-16 00:59:06,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116005807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:06,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:06,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 00:59:06,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947503505] [2021-12-16 00:59:06,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:06,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 00:59:06,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:06,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 00:59:06,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 00:59:06,190 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:06,275 INFO L93 Difference]: Finished difference Result 108 states and 141 transitions. [2021-12-16 00:59:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:59:06,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-16 00:59:06,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:06,276 INFO L225 Difference]: With dead ends: 108 [2021-12-16 00:59:06,277 INFO L226 Difference]: Without dead ends: 58 [2021-12-16 00:59:06,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 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 00:59:06,278 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 102 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:06,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 149 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:59:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-12-16 00:59:06,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-12-16 00:59:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.326086956521739) internal successors, (61), 51 states have internal predecessors, (61), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-16 00:59:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 73 transitions. [2021-12-16 00:59:06,295 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 73 transitions. Word has length 30 [2021-12-16 00:59:06,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:06,295 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 73 transitions. [2021-12-16 00:59:06,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,295 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2021-12-16 00:59:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-16 00:59:06,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:06,296 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] [2021-12-16 00:59:06,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 00:59:06,297 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:06,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:06,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1540812236, now seen corresponding path program 1 times [2021-12-16 00:59:06,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:06,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971684286] [2021-12-16 00:59:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:06,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 00:59:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:59:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,354 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 00:59:06,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:06,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971684286] [2021-12-16 00:59:06,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971684286] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:06,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:06,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 00:59:06,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346791949] [2021-12-16 00:59:06,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:06,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:59:06,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:06,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:59:06,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 00:59:06,357 INFO L87 Difference]: Start difference. First operand 58 states and 73 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 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 00:59:06,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:06,398 INFO L93 Difference]: Finished difference Result 147 states and 190 transitions. [2021-12-16 00:59:06,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:59:06,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 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 35 [2021-12-16 00:59:06,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:06,400 INFO L225 Difference]: With dead ends: 147 [2021-12-16 00:59:06,403 INFO L226 Difference]: Without dead ends: 97 [2021-12-16 00:59:06,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 00:59:06,405 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 46 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:06,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 142 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:59:06,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-12-16 00:59:06,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2021-12-16 00:59:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 80 states have internal predecessors, (98), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2021-12-16 00:59:06,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 120 transitions. [2021-12-16 00:59:06,423 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 120 transitions. Word has length 35 [2021-12-16 00:59:06,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:06,423 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 120 transitions. [2021-12-16 00:59:06,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 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 00:59:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 120 transitions. [2021-12-16 00:59:06,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-16 00:59:06,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:06,425 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] [2021-12-16 00:59:06,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 00:59:06,426 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:06,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:06,426 INFO L85 PathProgramCache]: Analyzing trace with hash 418627801, now seen corresponding path program 1 times [2021-12-16 00:59:06,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:06,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998181643] [2021-12-16 00:59:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:06,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 00:59:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,499 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 00:59:06,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:06,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998181643] [2021-12-16 00:59:06,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998181643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:06,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:06,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 00:59:06,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821311721] [2021-12-16 00:59:06,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:06,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:59:06,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:06,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:59:06,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 00:59:06,502 INFO L87 Difference]: Start difference. First operand 95 states and 120 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:06,523 INFO L93 Difference]: Finished difference Result 259 states and 343 transitions. [2021-12-16 00:59:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:59:06,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-12-16 00:59:06,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:06,525 INFO L225 Difference]: With dead ends: 259 [2021-12-16 00:59:06,525 INFO L226 Difference]: Without dead ends: 172 [2021-12-16 00:59:06,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 00:59:06,526 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 42 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:06,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 136 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:59:06,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-12-16 00:59:06,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 170. [2021-12-16 00:59:06,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 133 states have (on average 1.3233082706766917) internal successors, (176), 141 states have internal predecessors, (176), 19 states have call successors, (19), 19 states have call predecessors, (19), 17 states have return successors, (25), 17 states have call predecessors, (25), 19 states have call successors, (25) [2021-12-16 00:59:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2021-12-16 00:59:06,543 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 39 [2021-12-16 00:59:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:06,543 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2021-12-16 00:59:06,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2021-12-16 00:59:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-16 00:59:06,544 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:06,545 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] [2021-12-16 00:59:06,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 00:59:06,545 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:06,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2107571543, now seen corresponding path program 1 times [2021-12-16 00:59:06,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:06,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875329161] [2021-12-16 00:59:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:06,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 00:59:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,580 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 00:59:06,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:06,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875329161] [2021-12-16 00:59:06,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875329161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:06,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:06,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 00:59:06,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597710378] [2021-12-16 00:59:06,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:06,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:59:06,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:06,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:59:06,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 00:59:06,582 INFO L87 Difference]: Start difference. First operand 170 states and 220 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:06,616 INFO L93 Difference]: Finished difference Result 366 states and 484 transitions. [2021-12-16 00:59:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 00:59:06,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-12-16 00:59:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:06,618 INFO L225 Difference]: With dead ends: 366 [2021-12-16 00:59:06,618 INFO L226 Difference]: Without dead ends: 204 [2021-12-16 00:59:06,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:59:06,620 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 56 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:06,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 334 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:59:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-12-16 00:59:06,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 176. [2021-12-16 00:59:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 139 states have (on average 1.3093525179856116) internal successors, (182), 147 states have internal predecessors, (182), 19 states have call successors, (19), 19 states have call predecessors, (19), 17 states have return successors, (25), 17 states have call predecessors, (25), 19 states have call successors, (25) [2021-12-16 00:59:06,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 226 transitions. [2021-12-16 00:59:06,636 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 226 transitions. Word has length 39 [2021-12-16 00:59:06,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:06,637 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 226 transitions. [2021-12-16 00:59:06,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 226 transitions. [2021-12-16 00:59:06,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-16 00:59:06,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:06,639 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] [2021-12-16 00:59:06,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 00:59:06,639 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:06,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:06,640 INFO L85 PathProgramCache]: Analyzing trace with hash 519223641, now seen corresponding path program 1 times [2021-12-16 00:59:06,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:06,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352243382] [2021-12-16 00:59:06,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:06,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 00:59:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,684 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 00:59:06,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:06,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352243382] [2021-12-16 00:59:06,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352243382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:06,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:06,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 00:59:06,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413272223] [2021-12-16 00:59:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:06,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 00:59:06,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:06,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 00:59:06,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 00:59:06,687 INFO L87 Difference]: Start difference. First operand 176 states and 226 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:06,724 INFO L93 Difference]: Finished difference Result 327 states and 424 transitions. [2021-12-16 00:59:06,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 00:59:06,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-12-16 00:59:06,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:06,726 INFO L225 Difference]: With dead ends: 327 [2021-12-16 00:59:06,726 INFO L226 Difference]: Without dead ends: 159 [2021-12-16 00:59:06,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 00:59:06,728 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 35 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:06,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 211 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:59:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-12-16 00:59:06,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 142. [2021-12-16 00:59:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 112 states have (on average 1.2857142857142858) internal successors, (144), 119 states have internal predecessors, (144), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2021-12-16 00:59:06,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 176 transitions. [2021-12-16 00:59:06,741 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 176 transitions. Word has length 39 [2021-12-16 00:59:06,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:06,755 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 176 transitions. [2021-12-16 00:59:06,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 00:59:06,755 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 176 transitions. [2021-12-16 00:59:06,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-16 00:59:06,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:06,757 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] [2021-12-16 00:59:06,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 00:59:06,757 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:06,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash 554996476, now seen corresponding path program 1 times [2021-12-16 00:59:06,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:06,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181019644] [2021-12-16 00:59:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:06,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 00:59:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 00:59:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:06,802 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 00:59:06,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:06,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181019644] [2021-12-16 00:59:06,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181019644] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:06,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:06,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 00:59:06,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093736134] [2021-12-16 00:59:06,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:06,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 00:59:06,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:06,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 00:59:06,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 00:59:06,805 INFO L87 Difference]: Start difference. First operand 142 states and 176 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 00:59:06,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:06,897 INFO L93 Difference]: Finished difference Result 408 states and 518 transitions. [2021-12-16 00:59:06,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 00:59:06,897 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-12-16 00:59:06,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:06,899 INFO L225 Difference]: With dead ends: 408 [2021-12-16 00:59:06,899 INFO L226 Difference]: Without dead ends: 274 [2021-12-16 00:59:06,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:59:06,900 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 37 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:06,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 345 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:59:06,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-12-16 00:59:06,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 265. [2021-12-16 00:59:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 206 states have (on average 1.2524271844660195) internal successors, (258), 219 states have internal predecessors, (258), 30 states have call successors, (30), 30 states have call predecessors, (30), 28 states have return successors, (37), 28 states have call predecessors, (37), 30 states have call successors, (37) [2021-12-16 00:59:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 325 transitions. [2021-12-16 00:59:06,935 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 325 transitions. Word has length 41 [2021-12-16 00:59:06,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:06,935 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 325 transitions. [2021-12-16 00:59:06,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 00:59:06,936 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 325 transitions. [2021-12-16 00:59:06,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-16 00:59:06,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:06,937 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 00:59:06,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 00:59:06,937 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:06,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:06,938 INFO L85 PathProgramCache]: Analyzing trace with hash -167821216, now seen corresponding path program 1 times [2021-12-16 00:59:06,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:06,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996586530] [2021-12-16 00:59:06,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:06,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:07,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 00:59:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:07,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:59:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:07,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-16 00:59:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:07,026 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 00:59:07,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:07,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996586530] [2021-12-16 00:59:07,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996586530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:07,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:07,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 00:59:07,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56427192] [2021-12-16 00:59:07,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:07,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 00:59:07,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:07,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 00:59:07,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 00:59:07,029 INFO L87 Difference]: Start difference. First operand 265 states and 325 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 00:59:07,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:07,167 INFO L93 Difference]: Finished difference Result 529 states and 652 transitions. [2021-12-16 00:59:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 00:59:07,168 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), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2021-12-16 00:59:07,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:07,170 INFO L225 Difference]: With dead ends: 529 [2021-12-16 00:59:07,170 INFO L226 Difference]: Without dead ends: 272 [2021-12-16 00:59:07,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:59:07,171 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 85 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:07,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 196 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 00:59:07,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-12-16 00:59:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 263. [2021-12-16 00:59:07,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 204 states have (on average 1.2352941176470589) internal successors, (252), 217 states have internal predecessors, (252), 30 states have call successors, (30), 30 states have call predecessors, (30), 28 states have return successors, (37), 28 states have call predecessors, (37), 30 states have call successors, (37) [2021-12-16 00:59:07,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 319 transitions. [2021-12-16 00:59:07,184 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 319 transitions. Word has length 45 [2021-12-16 00:59:07,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:07,184 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 319 transitions. [2021-12-16 00:59:07,185 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), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 00:59:07,185 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 319 transitions. [2021-12-16 00:59:07,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-16 00:59:07,186 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:07,186 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] [2021-12-16 00:59:07,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 00:59:07,186 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:07,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:07,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1482931365, now seen corresponding path program 1 times [2021-12-16 00:59:07,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:07,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160045616] [2021-12-16 00:59:07,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:07,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:59:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:07,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:59:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 00:59:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:59:07,229 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 00:59:07,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:59:07,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160045616] [2021-12-16 00:59:07,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160045616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:59:07,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:59:07,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 00:59:07,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380209517] [2021-12-16 00:59:07,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:59:07,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:59:07,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:59:07,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:59:07,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 00:59:07,232 INFO L87 Difference]: Start difference. First operand 263 states and 319 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 00:59:07,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:59:07,424 INFO L93 Difference]: Finished difference Result 524 states and 653 transitions. [2021-12-16 00:59:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:59:07,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2021-12-16 00:59:07,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:59:07,427 INFO L225 Difference]: With dead ends: 524 [2021-12-16 00:59:07,427 INFO L226 Difference]: Without dead ends: 522 [2021-12-16 00:59:07,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:59:07,428 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 198 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:59:07,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 144 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 00:59:07,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-12-16 00:59:07,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 411. [2021-12-16 00:59:07,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 324 states have (on average 1.2469135802469136) internal successors, (404), 351 states have internal predecessors, (404), 45 states have call successors, (45), 35 states have call predecessors, (45), 41 states have return successors, (67), 43 states have call predecessors, (67), 45 states have call successors, (67) [2021-12-16 00:59:07,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 516 transitions. [2021-12-16 00:59:07,447 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 516 transitions. Word has length 47 [2021-12-16 00:59:07,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:59:07,448 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 516 transitions. [2021-12-16 00:59:07,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 00:59:07,448 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 516 transitions. [2021-12-16 00:59:07,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-16 00:59:07,449 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:59:07,450 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-16 00:59:07,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 00:59:07,450 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:59:07,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:59:07,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1221722552, now seen corresponding path program 1 times [2021-12-16 00:59:07,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:59:07,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057467663] [2021-12-16 00:59:07,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:59:07,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:59:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 00:59:07,465 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 00:59:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 00:59:07,494 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 00:59:07,494 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-16 00:59:07,495 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 00:59:07,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 00:59:07,498 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:59:07,500 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 00:59:07,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:59:07 BoogieIcfgContainer [2021-12-16 00:59:07,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 00:59:07,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 00:59:07,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 00:59:07,539 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 00:59:07,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:59:05" (3/4) ... [2021-12-16 00:59:07,540 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-16 00:59:07,582 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 00:59:07,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 00:59:07,583 INFO L158 Benchmark]: Toolchain (without parser) took 2916.31ms. Allocated memory was 111.1MB in the beginning and 165.7MB in the end (delta: 54.5MB). Free memory was 72.5MB in the beginning and 54.6MB in the end (delta: 17.9MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2021-12-16 00:59:07,583 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 00:59:07,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.88ms. Allocated memory is still 111.1MB. Free memory was 72.3MB in the beginning and 78.0MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 00:59:07,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.32ms. Allocated memory is still 111.1MB. Free memory was 78.0MB in the beginning and 75.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 00:59:07,584 INFO L158 Benchmark]: Boogie Preprocessor took 21.03ms. Allocated memory is still 111.1MB. Free memory was 75.6MB in the beginning and 74.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 00:59:07,584 INFO L158 Benchmark]: RCFGBuilder took 436.05ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 58.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-16 00:59:07,584 INFO L158 Benchmark]: TraceAbstraction took 1968.79ms. Allocated memory was 111.1MB in the beginning and 165.7MB in the end (delta: 54.5MB). Free memory was 58.5MB in the beginning and 63.0MB in the end (delta: -4.5MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2021-12-16 00:59:07,585 INFO L158 Benchmark]: Witness Printer took 44.06ms. Allocated memory is still 165.7MB. Free memory was 63.0MB in the beginning and 54.6MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-16 00:59:07,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.88ms. Allocated memory is still 111.1MB. Free memory was 72.3MB in the beginning and 78.0MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.32ms. Allocated memory is still 111.1MB. Free memory was 78.0MB in the beginning and 75.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.03ms. Allocated memory is still 111.1MB. Free memory was 75.6MB in the beginning and 74.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 436.05ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 58.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1968.79ms. Allocated memory was 111.1MB in the beginning and 165.7MB in the end (delta: 54.5MB). Free memory was 58.5MB in the beginning and 63.0MB in the end (delta: -4.5MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Witness Printer took 44.06ms. Allocated memory is still 165.7MB. Free memory was 63.0MB in the beginning and 54.6MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 294]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L302] int pumpRunning = 0; [L303] int systemActive = 1; [L689] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L886] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L267] int retValue_acc ; [L268] int tmp ; [L272] FCALL select_helpers() [L273] FCALL select_features() [L274] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L274] RET, EXPR valid_product() [L274] tmp = valid_product() [L276] COND TRUE \read(tmp) [L278] FCALL setup() [L279] CALL runTest() [L260] CALL __utac_acc__Specification2_spec__1() [L891] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L260] RET __utac_acc__Specification2_spec__1() [L261] CALL test() [L456] int splverifierCounter ; [L457] int tmp ; [L458] int tmp___0 ; [L459] int tmp___1 ; [L460] int tmp___2 ; [L463] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L465] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L467] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L473] tmp = __VERIFIER_nondet_int() [L475] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L477] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L113] COND TRUE waterLevel < 2 [L114] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L477] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L483] tmp___0 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L487] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L125] COND FALSE !(\read(methaneLevelCritical)) [L128] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L487] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L493] tmp___2 = __VERIFIER_nondet_int() [L495] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L508] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L310] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L317] COND TRUE \read(systemActive) [L319] CALL processEnvironment() [L339] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L342] COND TRUE ! pumpRunning [L344] CALL, EXPR isHighWaterLevel() [L436] int retValue_acc ; [L437] int tmp ; [L438] int tmp___0 ; [L442] CALL, EXPR isHighWaterSensorDry() [L175] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L178] COND FALSE !(waterLevel < 2) [L182] retValue_acc = 0 [L183] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L442] RET, EXPR isHighWaterSensorDry() [L442] tmp = isHighWaterSensorDry() [L444] COND FALSE !(\read(tmp)) [L447] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L449] retValue_acc = tmp___0 [L450] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L344] RET, EXPR isHighWaterLevel() [L344] tmp = isHighWaterLevel() [L346] COND TRUE \read(tmp) [L348] CALL activatePump() [L367] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L348] RET activatePump() [L319] RET processEnvironment() [L325] CALL __utac_acc__Specification2_spec__2() [L896] int tmp ; [L897] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L901] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L901] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L901] tmp = isMethaneLevelCritical() [L903] COND TRUE \read(tmp) [L905] CALL, EXPR isPumpRunning() [L391] int retValue_acc ; [L394] retValue_acc = pumpRunning [L395] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L905] RET, EXPR isPumpRunning() [L905] tmp___0 = isPumpRunning() [L907] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L908] COND FALSE !(\read(methAndRunningLastTime)) [L913] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L325] RET __utac_acc__Specification2_spec__2() [L508] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L465] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L467] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L473] tmp = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L483] tmp___0 = __VERIFIER_nondet_int() [L485] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L493] tmp___2 = __VERIFIER_nondet_int() [L495] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L508] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L310] COND TRUE \read(pumpRunning) [L312] CALL lowerWaterLevel() [L101] COND TRUE waterLevel > 0 [L102] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L312] RET lowerWaterLevel() [L317] COND TRUE \read(systemActive) [L319] CALL processEnvironment() [L339] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L342] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L357] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L319] RET processEnvironment() [L325] CALL __utac_acc__Specification2_spec__2() [L896] int tmp ; [L897] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L901] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L901] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L901] tmp = isMethaneLevelCritical() [L903] COND TRUE \read(tmp) [L905] CALL, EXPR isPumpRunning() [L391] int retValue_acc ; [L394] retValue_acc = pumpRunning [L395] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L905] RET, EXPR isPumpRunning() [L905] tmp___0 = isPumpRunning() [L907] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L908] COND TRUE \read(methAndRunningLastTime) [L910] CALL __automaton_fail() [L294] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 626 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 613 mSDsluCounter, 1882 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1096 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 387 IncrementalHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 786 mSDtfsCounter, 387 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred in iteration=10, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 178 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 444 NumberOfCodeBlocks, 444 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 356 ConstructedInterpolants, 0 QuantifiedInterpolants, 697 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-16 00:59:07,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE