/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/float-benchs/water_pid.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:16:14,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:16:14,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:16:14,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:16:14,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:16:14,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:16:14,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:16:14,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:16:14,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:16:14,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:16:14,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:16:14,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:16:14,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:16:14,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:16:14,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:16:14,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:16:14,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:16:14,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:16:14,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:16:14,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:16:14,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:16:14,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:16:14,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:16:14,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:16:14,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:16:14,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:16:14,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:16:14,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:16:14,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:16:14,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:16:14,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:16:14,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:16:14,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:16:14,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:16:14,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:16:14,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:16:14,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:16:14,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:16:14,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:16:14,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:16:14,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:16:14,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:16:14,221 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:16:14,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:16:14,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:16:14,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:16:14,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:16:14,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:16:14,223 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:16:14,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:16:14,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:16:14,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:16:14,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:16:14,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:16:14,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:16:14,225 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:16:14,225 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:16:14,225 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:16:14,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:16:14,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:16:14,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:16:14,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:16:14,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:16:14,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:16:14,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:16:14,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:16:14,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:16:14,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:16:14,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:16:14,227 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:16:14,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:16:14,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:16:14,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:16:14,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:16:14,229 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:16:14,229 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:16:14,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:16:14,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:16:14,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:16:14,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:16:14,466 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:16:14,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/water_pid.c [2022-01-11 05:16:14,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8060daa6a/ebb658a2efb945528a5ed203e43145b0/FLAGd0da0ad9b [2022-01-11 05:16:14,895 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:16:14,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/water_pid.c [2022-01-11 05:16:14,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8060daa6a/ebb658a2efb945528a5ed203e43145b0/FLAGd0da0ad9b [2022-01-11 05:16:14,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8060daa6a/ebb658a2efb945528a5ed203e43145b0 [2022-01-11 05:16:14,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:16:14,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:16:14,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:16:14,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:16:14,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:16:14,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:16:14" (1/1) ... [2022-01-11 05:16:14,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fff551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:14, skipping insertion in model container [2022-01-11 05:16:14,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:16:14" (1/1) ... [2022-01-11 05:16:14,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:16:14,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:16:15,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/water_pid.c[452,465] [2022-01-11 05:16:15,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:16:15,104 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:16:15,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/water_pid.c[452,465] [2022-01-11 05:16:15,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:16:15,130 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:16:15,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15 WrapperNode [2022-01-11 05:16:15,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:16:15,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:16:15,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:16:15,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:16:15,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,168 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2022-01-11 05:16:15,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:16:15,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:16:15,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:16:15,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:16:15,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:16:15,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:16:15,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:16:15,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:16:15,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:16:15,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:16:15,230 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) [2022-01-11 05:16:15,236 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 [2022-01-11 05:16:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:16:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:16:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:16:15,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:16:15,319 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:16:15,321 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:16:15,447 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:16:15,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:16:15,453 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:16:15,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:16:15 BoogieIcfgContainer [2022-01-11 05:16:15,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:16:15,454 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:16:15,454 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:16:15,466 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:16:15,468 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:16:15" (1/1) ... [2022-01-11 05:16:15,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:16:15 BasicIcfg [2022-01-11 05:16:15,566 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:16:15,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:16:15,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:16:15,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:16:15,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:16:14" (1/4) ... [2022-01-11 05:16:15,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cecbf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:16:15, skipping insertion in model container [2022-01-11 05:16:15,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:16:15" (2/4) ... [2022-01-11 05:16:15,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cecbf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:16:15, skipping insertion in model container [2022-01-11 05:16:15,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:16:15" (3/4) ... [2022-01-11 05:16:15,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cecbf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:16:15, skipping insertion in model container [2022-01-11 05:16:15,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:16:15" (4/4) ... [2022-01-11 05:16:15,572 INFO L111 eAbstractionObserver]: Analyzing ICFG water_pid.cTransformedIcfg [2022-01-11 05:16:15,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:16:15,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 05:16:15,665 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:16:15,673 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 [2022-01-11 05:16:15,674 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 05:16:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:16:15,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 05:16:15,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:16:15,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:16:15,691 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:16:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:16:15,696 INFO L85 PathProgramCache]: Analyzing trace with hash -488246072, now seen corresponding path program 1 times [2022-01-11 05:16:15,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:16:15,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156556056] [2022-01-11 05:16:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:16:15,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:16:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:16:15,843 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 05:16:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:16:15,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 05:16:15,906 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 05:16:15,907 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 05:16:15,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:16:15,912 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-11 05:16:15,914 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 05:16:15,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:16:15 BasicIcfg [2022-01-11 05:16:15,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 05:16:15,937 INFO L158 Benchmark]: Toolchain (without parser) took 1017.42ms. Allocated memory was 179.3MB in the beginning and 272.6MB in the end (delta: 93.3MB). Free memory was 123.4MB in the beginning and 212.0MB in the end (delta: -88.6MB). Peak memory consumption was 5.0MB. Max. memory is 8.0GB. [2022-01-11 05:16:15,937 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:16:15,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.99ms. Allocated memory was 179.3MB in the beginning and 272.6MB in the end (delta: 93.3MB). Free memory was 123.2MB in the beginning and 244.5MB in the end (delta: -121.3MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2022-01-11 05:16:15,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.21ms. Allocated memory is still 272.6MB. Free memory was 244.5MB in the beginning and 242.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:16:15,943 INFO L158 Benchmark]: Boogie Preprocessor took 28.07ms. Allocated memory is still 272.6MB. Free memory was 242.9MB in the beginning and 241.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:16:15,944 INFO L158 Benchmark]: RCFGBuilder took 256.41ms. Allocated memory is still 272.6MB. Free memory was 241.9MB in the beginning and 230.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-11 05:16:15,945 INFO L158 Benchmark]: IcfgTransformer took 111.53ms. Allocated memory is still 272.6MB. Free memory was 230.3MB in the beginning and 227.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 05:16:15,945 INFO L158 Benchmark]: TraceAbstraction took 369.14ms. Allocated memory is still 272.6MB. Free memory was 227.2MB in the beginning and 212.0MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-11 05:16:15,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 209.99ms. Allocated memory was 179.3MB in the beginning and 272.6MB in the end (delta: 93.3MB). Free memory was 123.2MB in the beginning and 244.5MB in the end (delta: -121.3MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.21ms. Allocated memory is still 272.6MB. Free memory was 244.5MB in the beginning and 242.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.07ms. Allocated memory is still 272.6MB. Free memory was 242.9MB in the beginning and 241.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 256.41ms. Allocated memory is still 272.6MB. Free memory was 241.9MB in the beginning and 230.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 111.53ms. Allocated memory is still 272.6MB. Free memory was 230.3MB in the beginning and 227.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 369.14ms. Allocated memory is still 272.6MB. Free memory was 227.2MB in the beginning and 212.0MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * 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 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of fp.geq at line 46, overapproximation of fp.add at line 42, overapproximation of fp.sub at line 41, overapproximation of to_fp at line 31, overapproximation of floatingLiteral_0.5_DOUBLE at line 34, overapproximation of fp.leq at line 46, overapproximation of fp.mul at line 43. Possible FailurePath: [L12] static NUM yn = 0; [L14] NUM ui = 0; [L24] NUM yi, yc; [L25] NUM K; [L26] NUM T; [L27] NUM taui; [L28] NUM taud; [L29] NUM ei, sumej, epi; [L30] int i; [L31] T = 1 [L32] taui = 1 [L33] taud = 1 [L34] K = .5 [L35] yc = .5 [L36] CALL, EXPR y(0) [L18] yn += ui [L19] return yn; VAL [\old(i)=0, i=0] [L36] RET, EXPR y(0) [L36] yi = y(0) [L37] epi = yc-yi [L38] sumej = epi [L39] i=0 VAL [i=0] [L39] COND TRUE i<120 [L40] CALL, EXPR y(i) [L18] yn += ui [L19] return yn; VAL [\old(i)=0, i=0] [L40] RET, EXPR y(i) [L40] yi = y(i) [L41] ei = yc-yi [L42] sumej = sumej+ei [L43] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L44] epi = ei [L46] CALL __VERIFIER_assert(epi >= -1. && epi <= 1.) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces [2022-01-11 05:16:15,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...