/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:26:58,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:26:58,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:26:58,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:26:58,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:26:58,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:26:58,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:26:58,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:26:58,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:26:58,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:26:58,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:26:58,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:26:58,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:26:58,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:26:58,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:26:58,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:26:58,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:26:58,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:26:58,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:26:58,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:26:58,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:26:58,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:26:58,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:26:58,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:26:58,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:26:58,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:26:58,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:26:58,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:26:58,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:26:58,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:26:58,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:26:58,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:26:58,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:26:58,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:26:58,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:26:58,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:26:58,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:26:58,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:26:58,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:26:58,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:26:58,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:26:58,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:26:58,205 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:26:58,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:26:58,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:26:58,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:26:58,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:26:58,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:26:58,207 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:26:58,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:26:58,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:26:58,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:26:58,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:26:58,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:26:58,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:26:58,207 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:26:58,208 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:26:58,208 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:26:58,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:26:58,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:26:58,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:26:58,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:26:58,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:26:58,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:26:58,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:26:58,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:26:58,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:26:58,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:26:58,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:26:58,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:26:58,209 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:26:58,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:26:58,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:26:58,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:26:58,211 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:26:58,211 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:26:58,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:26:58,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:26:58,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:26:58,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:26:58,391 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:26:58,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2022-01-10 12:26:58,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40edc348d/0571728e3e584bcead5e82a44df4a306/FLAG2b38c6d85 [2022-01-10 12:26:58,827 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:26:58,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2022-01-10 12:26:58,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40edc348d/0571728e3e584bcead5e82a44df4a306/FLAG2b38c6d85 [2022-01-10 12:26:59,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40edc348d/0571728e3e584bcead5e82a44df4a306 [2022-01-10 12:26:59,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:26:59,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:26:59,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:26:59,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:26:59,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:26:59,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b74a996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59, skipping insertion in model container [2022-01-10 12:26:59,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:26:59,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:26:59,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c[17943,17956] [2022-01-10 12:26:59,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:26:59,650 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:26:59,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:26:59,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c[17943,17956] [2022-01-10 12:26:59,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:26:59,697 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:26:59,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c[17943,17956] [2022-01-10 12:26:59,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:26:59,738 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:26:59,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59 WrapperNode [2022-01-10 12:26:59,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:26:59,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:26:59,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:26:59,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:26:59,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,790 INFO L137 Inliner]: procedures = 56, calls = 152, calls flagged for inlining = 49, calls inlined = 57, statements flattened = 455 [2022-01-10 12:26:59,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:26:59,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:26:59,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:26:59,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:26:59,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:26:59,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:26:59,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:26:59,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:26:59,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (1/1) ... [2022-01-10 12:26:59,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:26:59,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:26:59,921 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) [2022-01-10 12:26:59,940 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 [2022-01-10 12:26:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:26:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:26:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:26:59,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:27:00,013 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:27:00,014 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:27:00,272 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:27:00,277 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:27:00,278 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 12:27:00,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:27:00 BoogieIcfgContainer [2022-01-10 12:27:00,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:27:00,280 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:27:00,280 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:27:00,281 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:27:00,285 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:27:00" (1/1) ... [2022-01-10 12:27:00,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:27:00 BasicIcfg [2022-01-10 12:27:00,379 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:27:00,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:27:00,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:27:00,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:27:00,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:26:59" (1/4) ... [2022-01-10 12:27:00,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49756266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:27:00, skipping insertion in model container [2022-01-10 12:27:00,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:59" (2/4) ... [2022-01-10 12:27:00,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49756266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:27:00, skipping insertion in model container [2022-01-10 12:27:00,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:27:00" (3/4) ... [2022-01-10 12:27:00,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49756266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:27:00, skipping insertion in model container [2022-01-10 12:27:00,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:27:00" (4/4) ... [2022-01-10 12:27:00,383 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.cTransformedIcfg [2022-01-10 12:27:00,387 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:27:00,387 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 12:27:00,418 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:27:00,423 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 [2022-01-10 12:27:00,423 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 12:27:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 117 states have (on average 1.393162393162393) internal successors, (163), 120 states have internal predecessors, (163), 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) [2022-01-10 12:27:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 12:27:00,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:00,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:00,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash -293378484, now seen corresponding path program 1 times [2022-01-10 12:27:00,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:00,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345653305] [2022-01-10 12:27:00,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:00,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:00,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:00,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345653305] [2022-01-10 12:27:00,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345653305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:00,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:00,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:27:00,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900135514] [2022-01-10 12:27:00,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:00,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:27:00,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:00,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:27:00,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:27:00,620 INFO L87 Difference]: Start difference. First operand has 121 states, 117 states have (on average 1.393162393162393) internal successors, (163), 120 states have internal predecessors, (163), 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) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-01-10 12:27:00,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:00,650 INFO L93 Difference]: Finished difference Result 232 states and 315 transitions. [2022-01-10 12:27:00,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:27:00,651 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) Word has length 17 [2022-01-10 12:27:00,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:00,657 INFO L225 Difference]: With dead ends: 232 [2022-01-10 12:27:00,657 INFO L226 Difference]: Without dead ends: 111 [2022-01-10 12:27:00,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:27:00,662 INFO L933 BasicCegarLoop]: 153 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, 153 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 [2022-01-10 12:27:00,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:00,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-01-10 12:27:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-01-10 12:27:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.3425925925925926) internal successors, (145), 110 states have internal predecessors, (145), 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) [2022-01-10 12:27:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2022-01-10 12:27:00,691 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 17 [2022-01-10 12:27:00,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:00,691 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2022-01-10 12:27:00,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-01-10 12:27:00,692 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2022-01-10 12:27:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 12:27:00,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:00,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:00,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:27:00,693 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:00,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1109754240, now seen corresponding path program 1 times [2022-01-10 12:27:00,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:00,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468101841] [2022-01-10 12:27:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:00,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:00,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:00,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:00,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468101841] [2022-01-10 12:27:00,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468101841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:00,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:00,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:27:00,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962613731] [2022-01-10 12:27:00,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:00,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:27:00,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:00,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:27:00,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:00,765 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2022-01-10 12:27:00,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:00,795 INFO L93 Difference]: Finished difference Result 215 states and 283 transitions. [2022-01-10 12:27:00,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:27:00,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) Word has length 18 [2022-01-10 12:27:00,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:00,796 INFO L225 Difference]: With dead ends: 215 [2022-01-10 12:27:00,796 INFO L226 Difference]: Without dead ends: 111 [2022-01-10 12:27:00,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:00,798 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 130 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:00,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 139 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-01-10 12:27:00,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-01-10 12:27:00,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.3148148148148149) internal successors, (142), 110 states have internal predecessors, (142), 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) [2022-01-10 12:27:00,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2022-01-10 12:27:00,809 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 18 [2022-01-10 12:27:00,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:00,809 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2022-01-10 12:27:00,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2022-01-10 12:27:00,810 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2022-01-10 12:27:00,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 12:27:00,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:00,810 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] [2022-01-10 12:27:00,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:27:00,811 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:00,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:00,811 INFO L85 PathProgramCache]: Analyzing trace with hash 753050072, now seen corresponding path program 1 times [2022-01-10 12:27:00,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:00,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993173025] [2022-01-10 12:27:00,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:00,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:00,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:00,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993173025] [2022-01-10 12:27:00,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993173025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:00,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:00,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:27:00,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014250564] [2022-01-10 12:27:00,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:00,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:27:00,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:00,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:27:00,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:00,859 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-01-10 12:27:00,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:00,904 INFO L93 Difference]: Finished difference Result 277 states and 355 transitions. [2022-01-10 12:27:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:27:00,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) Word has length 21 [2022-01-10 12:27:00,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:00,905 INFO L225 Difference]: With dead ends: 277 [2022-01-10 12:27:00,906 INFO L226 Difference]: Without dead ends: 173 [2022-01-10 12:27:00,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:00,907 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 106 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:00,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 211 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:00,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-01-10 12:27:00,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 167. [2022-01-10 12:27:00,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 164 states have (on average 1.2865853658536586) internal successors, (211), 166 states have internal predecessors, (211), 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) [2022-01-10 12:27:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 211 transitions. [2022-01-10 12:27:00,937 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 211 transitions. Word has length 21 [2022-01-10 12:27:00,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:00,937 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 211 transitions. [2022-01-10 12:27:00,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-01-10 12:27:00,937 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 211 transitions. [2022-01-10 12:27:00,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 12:27:00,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:00,938 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] [2022-01-10 12:27:00,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:27:00,938 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:00,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:00,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1328567260, now seen corresponding path program 1 times [2022-01-10 12:27:00,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:00,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176862482] [2022-01-10 12:27:00,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:00,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:00,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:00,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:00,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176862482] [2022-01-10 12:27:00,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176862482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:00,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:00,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:27:00,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356439081] [2022-01-10 12:27:01,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:01,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:27:01,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:01,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:27:01,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:27:01,001 INFO L87 Difference]: Start difference. First operand 167 states and 211 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-01-10 12:27:01,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:01,159 INFO L93 Difference]: Finished difference Result 853 states and 1088 transitions. [2022-01-10 12:27:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:27:01,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) Word has length 27 [2022-01-10 12:27:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:01,162 INFO L225 Difference]: With dead ends: 853 [2022-01-10 12:27:01,162 INFO L226 Difference]: Without dead ends: 693 [2022-01-10 12:27:01,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:27:01,164 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 575 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:01,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 787 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:01,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-01-10 12:27:01,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 307. [2022-01-10 12:27:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 304 states have (on average 1.263157894736842) internal successors, (384), 306 states have internal predecessors, (384), 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) [2022-01-10 12:27:01,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 384 transitions. [2022-01-10 12:27:01,192 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 384 transitions. Word has length 27 [2022-01-10 12:27:01,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:01,192 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 384 transitions. [2022-01-10 12:27:01,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-01-10 12:27:01,193 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 384 transitions. [2022-01-10 12:27:01,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 12:27:01,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:01,194 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] [2022-01-10 12:27:01,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:27:01,194 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:01,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash -472352492, now seen corresponding path program 1 times [2022-01-10 12:27:01,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:01,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591679694] [2022-01-10 12:27:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:01,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:01,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:01,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591679694] [2022-01-10 12:27:01,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591679694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:01,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:01,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:27:01,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558856808] [2022-01-10 12:27:01,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:01,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:27:01,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:01,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:27:01,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:27:01,274 INFO L87 Difference]: Start difference. First operand 307 states and 384 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-01-10 12:27:01,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:01,451 INFO L93 Difference]: Finished difference Result 911 states and 1137 transitions. [2022-01-10 12:27:01,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:27:01,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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) Word has length 36 [2022-01-10 12:27:01,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:01,454 INFO L225 Difference]: With dead ends: 911 [2022-01-10 12:27:01,455 INFO L226 Difference]: Without dead ends: 905 [2022-01-10 12:27:01,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:27:01,459 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 546 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:01,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 986 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:01,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-01-10 12:27:01,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 307. [2022-01-10 12:27:01,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 304 states have (on average 1.2532894736842106) internal successors, (381), 306 states have internal predecessors, (381), 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) [2022-01-10 12:27:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 381 transitions. [2022-01-10 12:27:01,501 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 381 transitions. Word has length 36 [2022-01-10 12:27:01,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:01,505 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 381 transitions. [2022-01-10 12:27:01,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-01-10 12:27:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 381 transitions. [2022-01-10 12:27:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 12:27:01,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:01,508 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] [2022-01-10 12:27:01,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:27:01,508 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:01,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1908821392, now seen corresponding path program 1 times [2022-01-10 12:27:01,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:01,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017030856] [2022-01-10 12:27:01,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:01,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:01,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:01,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017030856] [2022-01-10 12:27:01,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017030856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:01,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:01,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:27:01,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863444753] [2022-01-10 12:27:01,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:01,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:27:01,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:01,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:27:01,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:27:01,599 INFO L87 Difference]: Start difference. First operand 307 states and 381 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-01-10 12:27:01,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:01,744 INFO L93 Difference]: Finished difference Result 823 states and 1009 transitions. [2022-01-10 12:27:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:27:01,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) Word has length 40 [2022-01-10 12:27:01,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:01,746 INFO L225 Difference]: With dead ends: 823 [2022-01-10 12:27:01,746 INFO L226 Difference]: Without dead ends: 523 [2022-01-10 12:27:01,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-10 12:27:01,753 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 409 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:01,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 686 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:01,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-01-10 12:27:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 325. [2022-01-10 12:27:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.2391304347826086) internal successors, (399), 324 states have internal predecessors, (399), 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) [2022-01-10 12:27:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 399 transitions. [2022-01-10 12:27:01,776 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 399 transitions. Word has length 40 [2022-01-10 12:27:01,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:01,777 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 399 transitions. [2022-01-10 12:27:01,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-01-10 12:27:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 399 transitions. [2022-01-10 12:27:01,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 12:27:01,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:01,779 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] [2022-01-10 12:27:01,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:27:01,779 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:01,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:01,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1398287215, now seen corresponding path program 1 times [2022-01-10 12:27:01,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:01,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597335408] [2022-01-10 12:27:01,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:01,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:01,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:01,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597335408] [2022-01-10 12:27:01,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597335408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:01,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:01,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:27:01,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130348723] [2022-01-10 12:27:01,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:01,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:27:01,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:01,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:27:01,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:27:01,839 INFO L87 Difference]: Start difference. First operand 325 states and 399 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-01-10 12:27:01,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:01,904 INFO L93 Difference]: Finished difference Result 761 states and 928 transitions. [2022-01-10 12:27:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:27:01,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) Word has length 40 [2022-01-10 12:27:01,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:01,909 INFO L225 Difference]: With dead ends: 761 [2022-01-10 12:27:01,909 INFO L226 Difference]: Without dead ends: 443 [2022-01-10 12:27:01,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:27:01,911 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 216 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:01,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 468 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-01-10 12:27:01,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 304. [2022-01-10 12:27:01,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 301 states have (on average 1.2259136212624584) internal successors, (369), 303 states have internal predecessors, (369), 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) [2022-01-10 12:27:01,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 369 transitions. [2022-01-10 12:27:01,933 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 369 transitions. Word has length 40 [2022-01-10 12:27:01,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:01,933 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 369 transitions. [2022-01-10 12:27:01,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-01-10 12:27:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 369 transitions. [2022-01-10 12:27:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 12:27:01,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:01,935 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] [2022-01-10 12:27:01,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:27:01,935 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:01,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash 537266230, now seen corresponding path program 1 times [2022-01-10 12:27:01,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:01,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770581191] [2022-01-10 12:27:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:01,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:02,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:02,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770581191] [2022-01-10 12:27:02,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770581191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:02,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:02,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:27:02,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521536710] [2022-01-10 12:27:02,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:02,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:27:02,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:02,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:27:02,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:02,013 INFO L87 Difference]: Start difference. First operand 304 states and 369 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2022-01-10 12:27:02,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:02,082 INFO L93 Difference]: Finished difference Result 668 states and 808 transitions. [2022-01-10 12:27:02,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:27:02,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) Word has length 47 [2022-01-10 12:27:02,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:02,083 INFO L225 Difference]: With dead ends: 668 [2022-01-10 12:27:02,083 INFO L226 Difference]: Without dead ends: 334 [2022-01-10 12:27:02,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:02,085 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 66 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:02,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 253 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-01-10 12:27:02,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-01-10 12:27:02,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 331 states have (on average 1.2205438066465257) internal successors, (404), 333 states have internal predecessors, (404), 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) [2022-01-10 12:27:02,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 404 transitions. [2022-01-10 12:27:02,111 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 404 transitions. Word has length 47 [2022-01-10 12:27:02,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:02,111 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 404 transitions. [2022-01-10 12:27:02,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2022-01-10 12:27:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 404 transitions. [2022-01-10 12:27:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 12:27:02,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:02,112 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:02,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:27:02,113 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash 850590096, now seen corresponding path program 1 times [2022-01-10 12:27:02,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:02,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54080357] [2022-01-10 12:27:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:02,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:02,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:02,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54080357] [2022-01-10 12:27:02,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54080357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:02,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:02,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:27:02,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472709260] [2022-01-10 12:27:02,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:02,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:27:02,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:02,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:27:02,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:02,183 INFO L87 Difference]: Start difference. First operand 334 states and 404 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2022-01-10 12:27:02,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:02,209 INFO L93 Difference]: Finished difference Result 334 states and 404 transitions. [2022-01-10 12:27:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:27:02,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) Word has length 55 [2022-01-10 12:27:02,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:02,210 INFO L225 Difference]: With dead ends: 334 [2022-01-10 12:27:02,210 INFO L226 Difference]: Without dead ends: 168 [2022-01-10 12:27:02,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:02,212 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 25 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:02,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 69 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-01-10 12:27:02,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-01-10 12:27:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 1.2455089820359282) internal successors, (208), 167 states have internal predecessors, (208), 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) [2022-01-10 12:27:02,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 208 transitions. [2022-01-10 12:27:02,231 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 208 transitions. Word has length 55 [2022-01-10 12:27:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:02,232 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 208 transitions. [2022-01-10 12:27:02,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2022-01-10 12:27:02,233 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 208 transitions. [2022-01-10 12:27:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 12:27:02,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:02,233 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 12:27:02,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:27:02,234 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:02,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:02,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2013539869, now seen corresponding path program 1 times [2022-01-10 12:27:02,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:02,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688540780] [2022-01-10 12:27:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:02,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-10 12:27:02,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:02,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688540780] [2022-01-10 12:27:02,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688540780] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:27:02,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631067368] [2022-01-10 12:27:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:02,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:27:02,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:27:02,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:27:02,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 12:27:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:02,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-10 12:27:02,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:27:03,013 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-10 12:27:03,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:27:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-10 12:27:03,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631067368] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 12:27:03,193 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 12:27:03,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 12 [2022-01-10 12:27:03,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746439667] [2022-01-10 12:27:03,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 12:27:03,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 12:27:03,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:03,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 12:27:03,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:27:03,195 INFO L87 Difference]: Start difference. First operand 168 states and 208 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 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) [2022-01-10 12:27:03,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:03,880 INFO L93 Difference]: Finished difference Result 1038 states and 1317 transitions. [2022-01-10 12:27:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-10 12:27:03,881 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 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) Word has length 62 [2022-01-10 12:27:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:03,884 INFO L225 Difference]: With dead ends: 1038 [2022-01-10 12:27:03,884 INFO L226 Difference]: Without dead ends: 907 [2022-01-10 12:27:03,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 113 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2022-01-10 12:27:03,885 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1273 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:03,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1273 Valid, 1045 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:27:03,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-01-10 12:27:03,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 311. [2022-01-10 12:27:03,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.261290322580645) internal successors, (391), 310 states have internal predecessors, (391), 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) [2022-01-10 12:27:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 391 transitions. [2022-01-10 12:27:03,916 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 391 transitions. Word has length 62 [2022-01-10 12:27:03,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:03,917 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 391 transitions. [2022-01-10 12:27:03,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 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) [2022-01-10 12:27:03,917 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 391 transitions. [2022-01-10 12:27:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 12:27:03,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:03,917 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 12:27:03,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 12:27:04,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-10 12:27:04,135 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:04,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1055229832, now seen corresponding path program 2 times [2022-01-10 12:27:04,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:04,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092797093] [2022-01-10 12:27:04,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:04,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 12:27:04,157 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 12:27:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 12:27:04,218 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 12:27:04,219 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 12:27:04,219 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 12:27:04,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 12:27:04,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 12:27:04,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:27:04,223 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:04,225 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 12:27:04,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:27:04 BasicIcfg [2022-01-10 12:27:04,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 12:27:04,317 INFO L158 Benchmark]: Toolchain (without parser) took 5072.97ms. Allocated memory was 179.3MB in the beginning and 292.6MB in the end (delta: 113.2MB). Free memory was 127.3MB in the beginning and 226.1MB in the end (delta: -98.8MB). Peak memory consumption was 112.7MB. Max. memory is 8.0GB. [2022-01-10 12:27:04,324 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 179.3MB. Free memory was 144.4MB in the beginning and 144.2MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 12:27:04,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.46ms. Allocated memory is still 179.3MB. Free memory was 127.0MB in the beginning and 140.4MB in the end (delta: -13.4MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-01-10 12:27:04,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.75ms. Allocated memory is still 179.3MB. Free memory was 140.4MB in the beginning and 137.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 12:27:04,325 INFO L158 Benchmark]: Boogie Preprocessor took 66.49ms. Allocated memory is still 179.3MB. Free memory was 137.2MB in the beginning and 135.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 12:27:04,325 INFO L158 Benchmark]: RCFGBuilder took 421.16ms. Allocated memory is still 179.3MB. Free memory was 135.1MB in the beginning and 115.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-10 12:27:04,325 INFO L158 Benchmark]: IcfgTransformer took 98.88ms. Allocated memory is still 179.3MB. Free memory was 115.2MB in the beginning and 107.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-10 12:27:04,325 INFO L158 Benchmark]: TraceAbstraction took 3936.61ms. Allocated memory was 179.3MB in the beginning and 292.6MB in the end (delta: 113.2MB). Free memory was 107.3MB in the beginning and 226.1MB in the end (delta: -118.8MB). Peak memory consumption was 93.0MB. Max. memory is 8.0GB. [2022-01-10 12:27:04,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 179.3MB. Free memory was 144.4MB in the beginning and 144.2MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 470.46ms. Allocated memory is still 179.3MB. Free memory was 127.0MB in the beginning and 140.4MB in the end (delta: -13.4MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.75ms. Allocated memory is still 179.3MB. Free memory was 140.4MB in the beginning and 137.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.49ms. Allocated memory is still 179.3MB. Free memory was 137.2MB in the beginning and 135.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 421.16ms. Allocated memory is still 179.3MB. Free memory was 135.1MB in the beginning and 115.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * IcfgTransformer took 98.88ms. Allocated memory is still 179.3MB. Free memory was 115.2MB in the beginning and 107.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 3936.61ms. Allocated memory was 179.3MB in the beginning and 292.6MB in the end (delta: 113.2MB). Free memory was 107.3MB in the beginning and 226.1MB in the end (delta: -118.8MB). Peak memory consumption was 93.0MB. 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 - CounterExampleResult [Line: 934]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L583] int cleanupTimeShifts = 4; [L752] int pumpRunning = 0; [L753] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L659] int retValue_acc ; [L660] int tmp ; [L664] FCALL select_helpers() [L665] FCALL select_features() [L666] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L666] RET, EXPR valid_product() [L666] tmp = valid_product() [L668] COND TRUE \read(tmp) [L670] FCALL setup() [L671] CALL runTest() [L653] CALL test() [L684] int splverifierCounter ; [L685] int tmp ; [L686] int tmp___0 ; [L687] int tmp___1 ; [L688] int tmp___2 ; [L691] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L693] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L695] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L701] tmp = __VERIFIER_nondet_int() [L703] COND TRUE \read(tmp) [L705] CALL waterRise() [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L705] RET waterRise() [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp___2)) [L729] tmp___1 = __VERIFIER_nondet_int() [L731] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L738] CALL timeShift() [L759] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] COND TRUE \read(systemActive) [L768] CALL processEnvironment() [L788] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L791] COND TRUE ! pumpRunning [L793] CALL, EXPR isHighWaterLevel() [L903] int retValue_acc ; [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L909] RET, EXPR isHighWaterSensorDry() [L909] tmp = isHighWaterSensorDry() [L911] COND FALSE !(\read(tmp)) [L914] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L916] retValue_acc = tmp___0 [L917] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L793] RET, EXPR isHighWaterLevel() [L793] tmp = isHighWaterLevel() [L795] COND TRUE \read(tmp) [L797] CALL activatePump() [L822] int tmp ; [L826] CALL, EXPR isMethaneAlarm() [L847] int retValue_acc ; [L851] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L851] RET, EXPR isMethaneLevelCritical() [L851] retValue_acc = isMethaneLevelCritical() [L853] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L826] RET, EXPR isMethaneAlarm() [L826] tmp = isMethaneAlarm() [L828] COND FALSE !(\read(tmp)) [L832] CALL activatePump__wrappee__highWaterSensor() [L816] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L832] RET activatePump__wrappee__highWaterSensor() [L797] RET activatePump() [L768] RET processEnvironment() [L774] CALL __utac_acc__Specification4_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\result=-2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L563] RET, EXPR getWaterLevel() [L563] tmp = getWaterLevel() [L565] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L774] RET __utac_acc__Specification4_spec__1() [L738] RET timeShift() [L693] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L695] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp___2)) [L729] tmp___1 = __VERIFIER_nondet_int() [L731] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L738] CALL timeShift() [L759] COND TRUE \read(pumpRunning) [L761] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L761] RET lowerWaterLevel() [L766] COND TRUE \read(systemActive) [L768] CALL processEnvironment() [L788] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L791] COND FALSE !(! pumpRunning) [L806] FCALL processEnvironment__wrappee__base() [L768] RET processEnvironment() [L774] CALL __utac_acc__Specification4_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L563] RET, EXPR getWaterLevel() [L563] tmp = getWaterLevel() [L565] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L774] RET __utac_acc__Specification4_spec__1() [L738] RET timeShift() [L693] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L695] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp___2)) [L729] tmp___1 = __VERIFIER_nondet_int() [L731] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L738] CALL timeShift() [L759] COND TRUE \read(pumpRunning) [L761] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L761] RET lowerWaterLevel() [L766] COND TRUE \read(systemActive) [L768] CALL processEnvironment() [L788] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L791] COND FALSE !(! pumpRunning) [L806] FCALL processEnvironment__wrappee__base() [L768] RET processEnvironment() [L774] CALL __utac_acc__Specification4_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L563] RET, EXPR getWaterLevel() [L563] tmp = getWaterLevel() [L565] COND TRUE tmp == 0 [L567] CALL, EXPR isPumpRunning() [L858] int retValue_acc ; [L861] retValue_acc = pumpRunning [L862] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L567] RET, EXPR isPumpRunning() [L567] tmp___0 = isPumpRunning() [L569] COND TRUE \read(tmp___0) [L571] CALL __automaton_fail() [L934] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 934]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3346 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3346 mSDsluCounter, 4797 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3159 mSDsCounter, 157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 527 IncrementalHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 157 mSolverCounterUnsat, 1638 mSDtfsCounter, 527 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 128 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=8, InterpolantAutomatonStates: 68, 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, 1923 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 509 NumberOfCodeBlocks, 509 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 3064 SizeOfPredicates, 3 NumberOfNonLiveVariables, 563 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 23/53 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! [2022-01-10 12:27:04,349 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...