/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:51:09,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:51:09,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:51:09,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:51:09,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:51:09,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:51:09,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:51:09,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:51:09,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:51:09,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:51:09,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:51:09,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:51:09,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:51:09,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:51:09,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:51:09,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:51:09,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:51:09,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:51:09,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:51:09,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:51:09,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:51:09,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:51:09,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:51:09,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:51:09,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:51:09,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:51:09,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:51:09,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:51:09,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:51:09,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:51:09,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:51:09,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:51:09,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:51:09,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:51:09,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:51:09,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:51:09,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:51:09,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:51:09,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:51:09,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:51:09,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:51:09,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:51:09,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:51:09,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:51:09,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:51:09,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:51:09,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:51:09,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:51:09,356 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:51:09,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:51:09,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:51:09,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:51:09,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:51:09,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:51:09,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:51:09,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:51:09,359 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:51:09,359 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:51:09,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:51:09,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:51:09,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:51:09,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:51:09,577 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:51:09,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2022-01-11 05:51:09,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c005d22/ea736e224d524c5e88e25bf106792b98/FLAG7a1746672 [2022-01-11 05:51:10,059 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:51:10,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2022-01-11 05:51:10,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c005d22/ea736e224d524c5e88e25bf106792b98/FLAG7a1746672 [2022-01-11 05:51:10,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c005d22/ea736e224d524c5e88e25bf106792b98 [2022-01-11 05:51:10,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:51:10,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:51:10,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:51:10,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:51:10,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:51:10,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13240ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10, skipping insertion in model container [2022-01-11 05:51:10,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:51:10,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:51:10,284 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_spec1_product35.cil.c[3064,3077] [2022-01-11 05:51:10,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:51:10,350 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:51:10,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:51:10,363 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_spec1_product35.cil.c[3064,3077] [2022-01-11 05:51:10,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:51:10,406 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:51:10,417 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_spec1_product35.cil.c[3064,3077] [2022-01-11 05:51:10,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:51:10,466 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:51:10,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10 WrapperNode [2022-01-11 05:51:10,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:51:10,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:51:10,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:51:10,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:51:10,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,510 INFO L137 Inliner]: procedures = 55, calls = 151, calls flagged for inlining = 48, calls inlined = 49, statements flattened = 396 [2022-01-11 05:51:10,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:51:10,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:51:10,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:51:10,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:51:10,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:51:10,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:51:10,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:51:10,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:51:10,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:10,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:51:10,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:51:10,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:51:10,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:51:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:51:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:51:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:51:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:51:10,641 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:51:10,642 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:51:10,949 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:51:10,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:51:10,954 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 05:51:10,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:51:10 BoogieIcfgContainer [2022-01-11 05:51:10,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:51:10,956 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:51:10,956 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:51:10,957 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:51:10,959 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:51:10" (1/1) ... [2022-01-11 05:51:11,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:51:11 BasicIcfg [2022-01-11 05:51:11,045 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:51:11,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:51:11,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:51:11,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:51:11,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:51:10" (1/4) ... [2022-01-11 05:51:11,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d2a379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:51:11, skipping insertion in model container [2022-01-11 05:51:11,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:10" (2/4) ... [2022-01-11 05:51:11,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d2a379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:51:11, skipping insertion in model container [2022-01-11 05:51:11,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:51:10" (3/4) ... [2022-01-11 05:51:11,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d2a379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:51:11, skipping insertion in model container [2022-01-11 05:51:11,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:51:11" (4/4) ... [2022-01-11 05:51:11,051 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.cTransformedIcfg [2022-01-11 05:51:11,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:51:11,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 05:51:11,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:51:11,104 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:51:11,105 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 05:51:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 108 states have (on average 1.4074074074074074) internal successors, (152), 111 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 05:51:11,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:11,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:51:11,122 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:11,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:11,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1972993743, now seen corresponding path program 1 times [2022-01-11 05:51:11,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:11,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467869570] [2022-01-11 05:51:11,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:11,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:11,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:11,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467869570] [2022-01-11 05:51:11,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467869570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:11,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:11,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:51:11,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973830895] [2022-01-11 05:51:11,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:11,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:51:11,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:11,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:51:11,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:51:11,339 INFO L87 Difference]: Start difference. First operand has 112 states, 108 states have (on average 1.4074074074074074) internal successors, (152), 111 states have internal predecessors, (152), 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) [2022-01-11 05:51:11,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:11,363 INFO L93 Difference]: Finished difference Result 214 states and 293 transitions. [2022-01-11 05:51:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:51:11,365 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 [2022-01-11 05:51:11,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:11,371 INFO L225 Difference]: With dead ends: 214 [2022-01-11 05:51:11,371 INFO L226 Difference]: Without dead ends: 102 [2022-01-11 05:51:11,374 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 [2022-01-11 05:51:11,377 INFO L933 BasicCegarLoop]: 142 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, 142 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 [2022-01-11 05:51:11,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:11,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-01-11 05:51:11,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-01-11 05:51:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 99 states have (on average 1.3535353535353536) internal successors, (134), 101 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 134 transitions. [2022-01-11 05:51:11,420 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 134 transitions. Word has length 17 [2022-01-11 05:51:11,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:11,420 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 134 transitions. [2022-01-11 05:51:11,420 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) [2022-01-11 05:51:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 134 transitions. [2022-01-11 05:51:11,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 05:51:11,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:11,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:51:11,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:51:11,422 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:11,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:11,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1638219744, now seen corresponding path program 1 times [2022-01-11 05:51:11,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:11,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377235175] [2022-01-11 05:51:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:11,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:11,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:11,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377235175] [2022-01-11 05:51:11,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377235175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:11,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:11,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:51:11,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613776844] [2022-01-11 05:51:11,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:11,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:51:11,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:11,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:51:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:11,519 INFO L87 Difference]: Start difference. First operand 102 states and 134 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) [2022-01-11 05:51:11,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:11,572 INFO L93 Difference]: Finished difference Result 258 states and 342 transitions. [2022-01-11 05:51:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:51:11,573 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 [2022-01-11 05:51:11,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:11,574 INFO L225 Difference]: With dead ends: 258 [2022-01-11 05:51:11,574 INFO L226 Difference]: Without dead ends: 163 [2022-01-11 05:51:11,575 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 [2022-01-11 05:51:11,576 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:11,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 206 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:11,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-01-11 05:51:11,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2022-01-11 05:51:11,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 151 states have (on average 1.3576158940397351) internal successors, (205), 153 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:11,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 205 transitions. [2022-01-11 05:51:11,598 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 205 transitions. Word has length 18 [2022-01-11 05:51:11,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:11,598 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 205 transitions. [2022-01-11 05:51:11,598 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) [2022-01-11 05:51:11,598 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 205 transitions. [2022-01-11 05:51:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-11 05:51:11,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:11,599 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] [2022-01-11 05:51:11,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:51:11,599 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:11,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:11,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1707666563, now seen corresponding path program 1 times [2022-01-11 05:51:11,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:11,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665272027] [2022-01-11 05:51:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:11,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:11,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:11,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:11,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665272027] [2022-01-11 05:51:11,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665272027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:11,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:11,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:51:11,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834867620] [2022-01-11 05:51:11,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:11,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:51:11,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:11,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:51:11,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:11,662 INFO L87 Difference]: Start difference. First operand 154 states and 205 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) [2022-01-11 05:51:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:11,707 INFO L93 Difference]: Finished difference Result 354 states and 470 transitions. [2022-01-11 05:51:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:51:11,708 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 [2022-01-11 05:51:11,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:11,709 INFO L225 Difference]: With dead ends: 354 [2022-01-11 05:51:11,709 INFO L226 Difference]: Without dead ends: 207 [2022-01-11 05:51:11,710 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 [2022-01-11 05:51:11,711 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 96 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:11,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 226 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-01-11 05:51:11,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 201. [2022-01-11 05:51:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 198 states have (on average 1.3080808080808082) internal successors, (259), 200 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 259 transitions. [2022-01-11 05:51:11,729 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 259 transitions. Word has length 21 [2022-01-11 05:51:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:11,729 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 259 transitions. [2022-01-11 05:51:11,729 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) [2022-01-11 05:51:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 259 transitions. [2022-01-11 05:51:11,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-11 05:51:11,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:11,730 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] [2022-01-11 05:51:11,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:51:11,730 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash -141222780, now seen corresponding path program 1 times [2022-01-11 05:51:11,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:11,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53252600] [2022-01-11 05:51:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:11,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:11,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:11,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53252600] [2022-01-11 05:51:11,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53252600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:11,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:11,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:51:11,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564779145] [2022-01-11 05:51:11,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:11,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:51:11,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:11,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:51:11,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:51:11,807 INFO L87 Difference]: Start difference. First operand 201 states and 259 transitions. Second operand has 4 states, 4 states have (on average 6.75) 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) [2022-01-11 05:51:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:11,893 INFO L93 Difference]: Finished difference Result 771 states and 994 transitions. [2022-01-11 05:51:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:51:11,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) 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 [2022-01-11 05:51:11,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:11,900 INFO L225 Difference]: With dead ends: 771 [2022-01-11 05:51:11,900 INFO L226 Difference]: Without dead ends: 577 [2022-01-11 05:51:11,903 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 [2022-01-11 05:51:11,911 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 336 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 498 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 [2022-01-11 05:51:11,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 498 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:11,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-01-11 05:51:11,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 207. [2022-01-11 05:51:11,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 204 states have (on average 1.2990196078431373) internal successors, (265), 206 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:11,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 265 transitions. [2022-01-11 05:51:11,939 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 265 transitions. Word has length 27 [2022-01-11 05:51:11,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:11,939 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 265 transitions. [2022-01-11 05:51:11,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) 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) [2022-01-11 05:51:11,940 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 265 transitions. [2022-01-11 05:51:11,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-11 05:51:11,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:11,940 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] [2022-01-11 05:51:11,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:51:11,941 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:11,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:11,941 INFO L85 PathProgramCache]: Analyzing trace with hash -270305499, now seen corresponding path program 1 times [2022-01-11 05:51:11,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:11,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314629613] [2022-01-11 05:51:11,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:11,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:12,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:12,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:12,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314629613] [2022-01-11 05:51:12,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314629613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:12,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:12,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:51:12,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325009254] [2022-01-11 05:51:12,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:12,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:51:12,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:12,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:51:12,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:51:12,022 INFO L87 Difference]: Start difference. First operand 207 states and 265 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-01-11 05:51:12,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:12,121 INFO L93 Difference]: Finished difference Result 601 states and 766 transitions. [2022-01-11 05:51:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:51:12,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-01-11 05:51:12,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:12,123 INFO L225 Difference]: With dead ends: 601 [2022-01-11 05:51:12,123 INFO L226 Difference]: Without dead ends: 401 [2022-01-11 05:51:12,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:51:12,127 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 308 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:12,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 687 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:12,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-01-11 05:51:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 216. [2022-01-11 05:51:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 213 states have (on average 1.2863849765258215) internal successors, (274), 215 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 274 transitions. [2022-01-11 05:51:12,154 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 274 transitions. Word has length 27 [2022-01-11 05:51:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:12,155 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 274 transitions. [2022-01-11 05:51:12,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-01-11 05:51:12,155 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 274 transitions. [2022-01-11 05:51:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-11 05:51:12,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:12,156 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] [2022-01-11 05:51:12,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:51:12,156 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:12,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:12,157 INFO L85 PathProgramCache]: Analyzing trace with hash -334949627, now seen corresponding path program 1 times [2022-01-11 05:51:12,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:12,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200030440] [2022-01-11 05:51:12,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:12,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:12,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:12,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200030440] [2022-01-11 05:51:12,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200030440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:12,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:12,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:51:12,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619739432] [2022-01-11 05:51:12,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:12,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:51:12,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:12,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:51:12,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:51:12,217 INFO L87 Difference]: Start difference. First operand 216 states and 274 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) [2022-01-11 05:51:12,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:12,345 INFO L93 Difference]: Finished difference Result 951 states and 1212 transitions. [2022-01-11 05:51:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:51:12,346 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 [2022-01-11 05:51:12,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:12,348 INFO L225 Difference]: With dead ends: 951 [2022-01-11 05:51:12,348 INFO L226 Difference]: Without dead ends: 624 [2022-01-11 05:51:12,349 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 [2022-01-11 05:51:12,351 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 460 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:12,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [460 Valid, 705 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:12,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-01-11 05:51:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 304. [2022-01-11 05:51:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 301 states have (on average 1.2790697674418605) internal successors, (385), 303 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 385 transitions. [2022-01-11 05:51:12,377 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 385 transitions. Word has length 27 [2022-01-11 05:51:12,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:12,378 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 385 transitions. [2022-01-11 05:51:12,378 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) [2022-01-11 05:51:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 385 transitions. [2022-01-11 05:51:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-11 05:51:12,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:12,381 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] [2022-01-11 05:51:12,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:51:12,381 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:12,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:12,382 INFO L85 PathProgramCache]: Analyzing trace with hash -593915864, now seen corresponding path program 1 times [2022-01-11 05:51:12,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:12,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480365030] [2022-01-11 05:51:12,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:12,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:12,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:12,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480365030] [2022-01-11 05:51:12,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480365030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:12,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:12,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:51:12,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276149275] [2022-01-11 05:51:12,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:12,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:51:12,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:12,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:51:12,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:51:12,462 INFO L87 Difference]: Start difference. First operand 304 states and 385 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:12,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:12,655 INFO L93 Difference]: Finished difference Result 887 states and 1111 transitions. [2022-01-11 05:51:12,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:51:12,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2022-01-11 05:51:12,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:12,659 INFO L225 Difference]: With dead ends: 887 [2022-01-11 05:51:12,659 INFO L226 Difference]: Without dead ends: 881 [2022-01-11 05:51:12,660 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 [2022-01-11 05:51:12,661 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 510 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:12,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 894 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:51:12,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-01-11 05:51:12,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 304. [2022-01-11 05:51:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 301 states have (on average 1.2591362126245846) internal successors, (379), 303 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 379 transitions. [2022-01-11 05:51:12,699 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 379 transitions. Word has length 30 [2022-01-11 05:51:12,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:12,700 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 379 transitions. [2022-01-11 05:51:12,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 379 transitions. [2022-01-11 05:51:12,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-11 05:51:12,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:12,703 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] [2022-01-11 05:51:12,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:51:12,704 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:12,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:12,704 INFO L85 PathProgramCache]: Analyzing trace with hash 725457959, now seen corresponding path program 1 times [2022-01-11 05:51:12,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:12,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474895564] [2022-01-11 05:51:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:12,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:12,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:12,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474895564] [2022-01-11 05:51:12,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474895564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:12,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:12,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:51:12,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68632429] [2022-01-11 05:51:12,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:12,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:51:12,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:12,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:51:12,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:12,784 INFO L87 Difference]: Start difference. First operand 304 states and 379 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:12,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:12,849 INFO L93 Difference]: Finished difference Result 773 states and 961 transitions. [2022-01-11 05:51:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:51:12,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2022-01-11 05:51:12,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:12,851 INFO L225 Difference]: With dead ends: 773 [2022-01-11 05:51:12,852 INFO L226 Difference]: Without dead ends: 412 [2022-01-11 05:51:12,852 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 [2022-01-11 05:51:12,853 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 72 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:12,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 243 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:12,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-01-11 05:51:12,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2022-01-11 05:51:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 409 states have (on average 1.2444987775061125) internal successors, (509), 411 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:12,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 509 transitions. [2022-01-11 05:51:12,904 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 509 transitions. Word has length 35 [2022-01-11 05:51:12,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:12,904 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 509 transitions. [2022-01-11 05:51:12,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:12,904 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 509 transitions. [2022-01-11 05:51:12,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 05:51:12,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:12,906 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] [2022-01-11 05:51:12,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:51:12,906 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:12,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:12,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1426786003, now seen corresponding path program 1 times [2022-01-11 05:51:12,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:12,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544564157] [2022-01-11 05:51:12,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:12,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:51:12,932 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 05:51:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:51:12,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 05:51:12,980 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 05:51:12,981 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 05:51:12,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 05:51:12,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 05:51:12,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:51:12,985 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:51:12,987 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 05:51:13,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:51:13 BasicIcfg [2022-01-11 05:51:13,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 05:51:13,066 INFO L158 Benchmark]: Toolchain (without parser) took 2970.97ms. Allocated memory was 190.8MB in the beginning and 283.1MB in the end (delta: 92.3MB). Free memory was 136.6MB in the beginning and 214.4MB in the end (delta: -77.9MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. [2022-01-11 05:51:13,066 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 153.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:51:13,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.19ms. Allocated memory was 190.8MB in the beginning and 283.1MB in the end (delta: 92.3MB). Free memory was 136.3MB in the beginning and 239.6MB in the end (delta: -103.3MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2022-01-11 05:51:13,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.52ms. Allocated memory is still 283.1MB. Free memory was 239.6MB in the beginning and 237.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 05:51:13,067 INFO L158 Benchmark]: Boogie Preprocessor took 33.48ms. Allocated memory is still 283.1MB. Free memory was 237.0MB in the beginning and 234.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 05:51:13,067 INFO L158 Benchmark]: RCFGBuilder took 411.11ms. Allocated memory is still 283.1MB. Free memory was 234.9MB in the beginning and 215.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-11 05:51:13,067 INFO L158 Benchmark]: IcfgTransformer took 88.86ms. Allocated memory is still 283.1MB. Free memory was 215.0MB in the beginning and 208.2MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-11 05:51:13,068 INFO L158 Benchmark]: TraceAbstraction took 2018.88ms. Allocated memory is still 283.1MB. Free memory was 207.6MB in the beginning and 214.4MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:51:13,069 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 190.8MB. Free memory is still 153.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 369.19ms. Allocated memory was 190.8MB in the beginning and 283.1MB in the end (delta: 92.3MB). Free memory was 136.3MB in the beginning and 239.6MB in the end (delta: -103.3MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.52ms. Allocated memory is still 283.1MB. Free memory was 239.6MB in the beginning and 237.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.48ms. Allocated memory is still 283.1MB. Free memory was 237.0MB in the beginning and 234.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 411.11ms. Allocated memory is still 283.1MB. Free memory was 234.9MB in the beginning and 215.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * IcfgTransformer took 88.86ms. Allocated memory is still 283.1MB. Free memory was 215.0MB in the beginning and 208.2MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 2018.88ms. Allocated memory is still 283.1MB. Free memory was 207.6MB in the beginning and 214.4MB in the end (delta: -6.8MB). There was no memory consumed. 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: 155]: 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; [L260] int pumpRunning = 0; [L261] int systemActive = 1; [L465] int cleanupTimeShifts = 4; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L539] int tmp ; [L543] FCALL select_helpers() [L544] FCALL select_features() [L545] CALL, EXPR valid_product() [L456] int retValue_acc ; [L459] retValue_acc = 1 [L460] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L545] RET, EXPR valid_product() [L545] tmp = valid_product() [L547] COND TRUE \read(tmp) [L549] FCALL setup() [L550] CALL runTest() [L532] CALL test() [L191] int splverifierCounter ; [L192] int tmp ; [L193] int tmp___0 ; [L194] int tmp___1 ; [L195] int tmp___2 ; [L198] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L200] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L202] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L208] tmp = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp) [L212] 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] [L212] RET waterRise() [L218] tmp___0 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___0) [L222] CALL changeMethaneLevel() [L87] COND FALSE !(\read(methaneLevelCritical)) [L90] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L222] RET changeMethaneLevel() [L228] tmp___2 = __VERIFIER_nondet_int() [L230] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=29, tmp___2=1, waterLevel=2] [L245] CALL timeShift() [L267] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L274] COND TRUE \read(systemActive) [L276] CALL processEnvironment() [L296] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L299] COND TRUE ! pumpRunning [L301] CALL, EXPR isHighWaterLevel() [L393] int retValue_acc ; [L394] int tmp ; [L395] int tmp___0 ; [L399] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, 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=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L399] RET, EXPR isHighWaterSensorDry() [L399] tmp = isHighWaterSensorDry() [L401] COND FALSE !(\read(tmp)) [L404] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L406] retValue_acc = tmp___0 [L407] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L301] RET, EXPR isHighWaterLevel() [L301] tmp = isHighWaterLevel() [L303] COND TRUE \read(tmp) [L305] CALL activatePump() [L324] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L305] RET activatePump() [L276] RET processEnvironment() [L282] CALL __utac_acc__Specification1_spec__1() [L162] int tmp ; [L163] int tmp___0 ; [L167] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L167] RET, EXPR isMethaneLevelCritical() [L167] tmp = isMethaneLevelCritical() [L169] COND TRUE \read(tmp) [L171] CALL, EXPR isPumpRunning() [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L171] RET, EXPR isPumpRunning() [L171] tmp___0 = isPumpRunning() [L173] COND TRUE \read(tmp___0) [L175] CALL __automaton_fail() [L155] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 155]: 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: 155]: 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, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1900 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1900 mSDsluCounter, 3601 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2249 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 1352 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=412occurred in iteration=8, InterpolantAutomatonStates: 39, 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, 8 MinimizatonAttempts, 1467 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 601 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-11 05:51:13,095 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...