/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_spec3_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:53:10,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:53:10,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:53:10,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:53:10,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:53:10,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:53:10,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:53:10,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:53:10,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:53:10,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:53:10,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:53:10,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:53:10,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:53:10,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:53:10,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:53:10,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:53:10,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:53:10,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:53:10,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:53:10,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:53:10,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:53:10,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:53:10,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:53:10,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:53:10,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:53:10,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:53:10,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:53:10,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:53:10,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:53:10,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:53:10,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:53:10,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:53:10,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:53:10,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:53:10,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:53:10,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:53:10,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:53:10,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:53:10,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:53:10,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:53:10,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:53:10,349 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 05:53:10,380 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:53:10,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:53:10,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:53:10,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:53:10,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:53:10,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:53:10,382 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:53:10,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:53:10,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:53:10,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:53:10,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:53:10,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:53:10,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:53:10,384 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:53:10,384 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:53:10,384 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:53:10,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:53:10,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:53:10,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:53:10,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:53:10,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:53:10,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:53:10,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:53:10,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:53:10,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:53:10,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:53:10,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:53:10,387 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:53:10,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:53:10,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:53:10,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:53:10,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:53:10,389 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:53:10,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:53:10,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:53:10,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:53:10,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:53:10,633 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:53:10,635 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:53:10,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2022-01-11 05:53:10,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ecf702f0/22af1ff3bc764603b983f861ee468516/FLAGabfc256ad [2022-01-11 05:53:11,145 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:53:11,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2022-01-11 05:53:11,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ecf702f0/22af1ff3bc764603b983f861ee468516/FLAGabfc256ad [2022-01-11 05:53:11,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ecf702f0/22af1ff3bc764603b983f861ee468516 [2022-01-11 05:53:11,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:53:11,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:53:11,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:53:11,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:53:11,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:53:11,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:53:11" (1/1) ... [2022-01-11 05:53:11,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f9be97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:11, skipping insertion in model container [2022-01-11 05:53:11,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:53:11" (1/1) ... [2022-01-11 05:53:11,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:53:11,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:53:12,015 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_spec3_product49.cil.c[18588,18601] [2022-01-11 05:53:12,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:53:12,033 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:53:12,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:53:12,094 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_spec3_product49.cil.c[18588,18601] [2022-01-11 05:53:12,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:53:12,100 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:53:12,158 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_spec3_product49.cil.c[18588,18601] [2022-01-11 05:53:12,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:53:12,174 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:53:12,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12 WrapperNode [2022-01-11 05:53:12,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:53:12,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:53:12,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:53:12,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:53:12,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,223 INFO L137 Inliner]: procedures = 57, calls = 155, calls flagged for inlining = 52, calls inlined = 80, statements flattened = 632 [2022-01-11 05:53:12,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:53:12,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:53:12,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:53:12,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:53:12,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:53:12,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:53:12,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:53:12,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:53:12,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:12,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:53:12,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:53:12,316 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 05:53:12,320 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 05:53:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:53:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:53:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:53:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:53:12,413 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:53:12,414 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:53:12,831 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:53:12,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:53:12,844 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 05:53:12,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:53:12 BoogieIcfgContainer [2022-01-11 05:53:12,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:53:12,847 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:53:12,847 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:53:12,856 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:53:12,858 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:53:12" (1/1) ... [2022-01-11 05:53:13,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:53:13 BasicIcfg [2022-01-11 05:53:13,042 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:53:13,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:53:13,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:53:13,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:53:13,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:53:11" (1/4) ... [2022-01-11 05:53:13,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a87045f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:53:13, skipping insertion in model container [2022-01-11 05:53:13,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:53:12" (2/4) ... [2022-01-11 05:53:13,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a87045f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:53:13, skipping insertion in model container [2022-01-11 05:53:13,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:53:12" (3/4) ... [2022-01-11 05:53:13,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a87045f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:53:13, skipping insertion in model container [2022-01-11 05:53:13,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:53:13" (4/4) ... [2022-01-11 05:53:13,049 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product49.cil.cTransformedIcfg [2022-01-11 05:53:13,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:53:13,054 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 05:53:13,106 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:53:13,116 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 05:53:13,116 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 05:53:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 167 states have (on average 1.401197604790419) internal successors, (234), 170 states have internal predecessors, (234), 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 05:53:13,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 05:53:13,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:13,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:13,139 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 05:53:13,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:13,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1024579178, now seen corresponding path program 1 times [2022-01-11 05:53:13,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:13,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807091255] [2022-01-11 05:53:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:13,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:13,408 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 05:53:13,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:13,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807091255] [2022-01-11 05:53:13,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807091255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:13,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:13,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:53:13,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827338902] [2022-01-11 05:53:13,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:13,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:53:13,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:13,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:53:13,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:53:13,460 INFO L87 Difference]: Start difference. First operand has 171 states, 167 states have (on average 1.401197604790419) internal successors, (234), 170 states have internal predecessors, (234), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 05:53:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:13,498 INFO L93 Difference]: Finished difference Result 332 states and 457 transitions. [2022-01-11 05:53:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:53:13,500 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2022-01-11 05:53:13,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:13,511 INFO L225 Difference]: With dead ends: 332 [2022-01-11 05:53:13,511 INFO L226 Difference]: Without dead ends: 161 [2022-01-11 05:53:13,514 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 05:53:13,517 INFO L933 BasicCegarLoop]: 224 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, 224 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 05:53:13,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:53:13,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-01-11 05:53:13,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-01-11 05:53:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.3670886075949367) internal successors, (216), 160 states have internal predecessors, (216), 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 05:53:13,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 216 transitions. [2022-01-11 05:53:13,555 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 216 transitions. Word has length 19 [2022-01-11 05:53:13,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:13,555 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 216 transitions. [2022-01-11 05:53:13,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 05:53:13,556 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 216 transitions. [2022-01-11 05:53:13,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-11 05:53:13,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:13,563 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] [2022-01-11 05:53:13,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:53:13,563 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 05:53:13,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:13,564 INFO L85 PathProgramCache]: Analyzing trace with hash 868202866, now seen corresponding path program 1 times [2022-01-11 05:53:13,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:13,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358859550] [2022-01-11 05:53:13,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:13,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:13,663 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 05:53:13,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:13,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358859550] [2022-01-11 05:53:13,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358859550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:13,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:13,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:53:13,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493033798] [2022-01-11 05:53:13,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:13,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:53:13,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:13,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:53:13,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:53:13,666 INFO L87 Difference]: Start difference. First operand 161 states and 216 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 05:53:13,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:13,713 INFO L93 Difference]: Finished difference Result 315 states and 425 transitions. [2022-01-11 05:53:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:53:13,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2022-01-11 05:53:13,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:13,715 INFO L225 Difference]: With dead ends: 315 [2022-01-11 05:53:13,715 INFO L226 Difference]: Without dead ends: 161 [2022-01-11 05:53:13,716 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 05:53:13,717 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 202 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:13,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 210 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:53:13,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-01-11 05:53:13,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-01-11 05:53:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 160 states have internal predecessors, (213), 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 05:53:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 213 transitions. [2022-01-11 05:53:13,731 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 213 transitions. Word has length 20 [2022-01-11 05:53:13,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:13,732 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 213 transitions. [2022-01-11 05:53:13,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 05:53:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 213 transitions. [2022-01-11 05:53:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-11 05:53:13,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:13,733 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] [2022-01-11 05:53:13,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:53:13,734 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 05:53:13,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1246542050, now seen corresponding path program 1 times [2022-01-11 05:53:13,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:13,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737143638] [2022-01-11 05:53:13,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:13,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:13,802 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 05:53:13,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:13,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737143638] [2022-01-11 05:53:13,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737143638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:13,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:13,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:53:13,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277246719] [2022-01-11 05:53:13,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:13,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:53:13,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:13,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:53:13,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:53:13,805 INFO L87 Difference]: Start difference. First operand 161 states and 213 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 05:53:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:13,940 INFO L93 Difference]: Finished difference Result 382 states and 505 transitions. [2022-01-11 05:53:13,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:53:13,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2022-01-11 05:53:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:13,945 INFO L225 Difference]: With dead ends: 382 [2022-01-11 05:53:13,945 INFO L226 Difference]: Without dead ends: 228 [2022-01-11 05:53:13,952 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 05:53:13,955 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 136 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:13,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 344 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:53:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-01-11 05:53:13,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2022-01-11 05:53:13,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.3105022831050228) internal successors, (287), 221 states have internal predecessors, (287), 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 05:53:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 287 transitions. [2022-01-11 05:53:13,984 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 287 transitions. Word has length 25 [2022-01-11 05:53:13,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:13,984 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 287 transitions. [2022-01-11 05:53:13,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 05:53:13,985 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 287 transitions. [2022-01-11 05:53:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 05:53:13,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:13,986 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] [2022-01-11 05:53:13,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:53:13,986 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 05:53:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:13,987 INFO L85 PathProgramCache]: Analyzing trace with hash 285082464, now seen corresponding path program 1 times [2022-01-11 05:53:13,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:13,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358577577] [2022-01-11 05:53:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:13,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:14,084 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 05:53:14,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:14,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358577577] [2022-01-11 05:53:14,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358577577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:14,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:14,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:53:14,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995679699] [2022-01-11 05:53:14,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:14,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:53:14,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:14,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:53:14,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:53:14,090 INFO L87 Difference]: Start difference. First operand 222 states and 287 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 05:53:14,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:14,235 INFO L93 Difference]: Finished difference Result 598 states and 760 transitions. [2022-01-11 05:53:14,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:53:14,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2022-01-11 05:53:14,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:14,237 INFO L225 Difference]: With dead ends: 598 [2022-01-11 05:53:14,237 INFO L226 Difference]: Without dead ends: 383 [2022-01-11 05:53:14,239 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 05:53:14,248 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 383 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:14,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 953 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:53:14,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-01-11 05:53:14,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 240. [2022-01-11 05:53:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 237 states have (on average 1.2869198312236287) internal successors, (305), 239 states have internal predecessors, (305), 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 05:53:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 305 transitions. [2022-01-11 05:53:14,278 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 305 transitions. Word has length 31 [2022-01-11 05:53:14,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:14,279 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 305 transitions. [2022-01-11 05:53:14,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 05:53:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 305 transitions. [2022-01-11 05:53:14,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 05:53:14,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:14,284 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] [2022-01-11 05:53:14,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:53:14,284 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 05:53:14,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1382786176, now seen corresponding path program 1 times [2022-01-11 05:53:14,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:14,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126579619] [2022-01-11 05:53:14,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:14,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:14,377 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 05:53:14,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:14,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126579619] [2022-01-11 05:53:14,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126579619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:14,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:14,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:53:14,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059327422] [2022-01-11 05:53:14,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:14,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:53:14,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:14,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:53:14,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:53:14,380 INFO L87 Difference]: Start difference. First operand 240 states and 305 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 05:53:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:14,684 INFO L93 Difference]: Finished difference Result 1344 states and 1718 transitions. [2022-01-11 05:53:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:53:14,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-01-11 05:53:14,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:14,688 INFO L225 Difference]: With dead ends: 1344 [2022-01-11 05:53:14,688 INFO L226 Difference]: Without dead ends: 751 [2022-01-11 05:53:14,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:53:14,690 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 934 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:14,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 1187 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:53:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-01-11 05:53:14,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 325. [2022-01-11 05:53:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.279503105590062) internal successors, (412), 324 states have internal predecessors, (412), 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 05:53:14,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 412 transitions. [2022-01-11 05:53:14,733 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 412 transitions. Word has length 31 [2022-01-11 05:53:14,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:14,733 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 412 transitions. [2022-01-11 05:53:14,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 05:53:14,733 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 412 transitions. [2022-01-11 05:53:14,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:53:14,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:14,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:14,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:53:14,734 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:53:14,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:14,735 INFO L85 PathProgramCache]: Analyzing trace with hash -592327147, now seen corresponding path program 1 times [2022-01-11 05:53:14,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:14,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251402890] [2022-01-11 05:53:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:14,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:14,812 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 05:53:14,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:14,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251402890] [2022-01-11 05:53:14,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251402890] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:14,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:14,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:53:14,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645689725] [2022-01-11 05:53:14,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:14,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:53:14,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:14,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:53:14,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:53:14,814 INFO L87 Difference]: Start difference. First operand 325 states and 412 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 05:53:14,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:14,932 INFO L93 Difference]: Finished difference Result 875 states and 1105 transitions. [2022-01-11 05:53:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:53:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 39 [2022-01-11 05:53:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:14,935 INFO L225 Difference]: With dead ends: 875 [2022-01-11 05:53:14,936 INFO L226 Difference]: Without dead ends: 642 [2022-01-11 05:53:14,937 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 05:53:14,938 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 388 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:14,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 783 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:53:14,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-01-11 05:53:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 337. [2022-01-11 05:53:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 334 states have (on average 1.2694610778443114) internal successors, (424), 336 states have internal predecessors, (424), 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 05:53:15,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 424 transitions. [2022-01-11 05:53:15,043 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 424 transitions. Word has length 39 [2022-01-11 05:53:15,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:15,045 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 424 transitions. [2022-01-11 05:53:15,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 05:53:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 424 transitions. [2022-01-11 05:53:15,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:53:15,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:15,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:15,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:53:15,047 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 05:53:15,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1711873994, now seen corresponding path program 1 times [2022-01-11 05:53:15,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:15,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741004876] [2022-01-11 05:53:15,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:15,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:15,117 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 05:53:15,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:15,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741004876] [2022-01-11 05:53:15,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741004876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:15,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:15,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:53:15,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774876597] [2022-01-11 05:53:15,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:15,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:53:15,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:15,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:53:15,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:53:15,119 INFO L87 Difference]: Start difference. First operand 337 states and 424 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 05:53:15,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:15,331 INFO L93 Difference]: Finished difference Result 971 states and 1228 transitions. [2022-01-11 05:53:15,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:53:15,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2022-01-11 05:53:15,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:15,334 INFO L225 Difference]: With dead ends: 971 [2022-01-11 05:53:15,334 INFO L226 Difference]: Without dead ends: 641 [2022-01-11 05:53:15,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 05:53:15,336 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 504 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:15,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 1423 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:53:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-01-11 05:53:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 283. [2022-01-11 05:53:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 280 states have (on average 1.2285714285714286) internal successors, (344), 282 states have internal predecessors, (344), 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 05:53:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 344 transitions. [2022-01-11 05:53:15,367 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 344 transitions. Word has length 39 [2022-01-11 05:53:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:15,368 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 344 transitions. [2022-01-11 05:53:15,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 05:53:15,368 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 344 transitions. [2022-01-11 05:53:15,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:53:15,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:15,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:15,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:53:15,369 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 05:53:15,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:15,370 INFO L85 PathProgramCache]: Analyzing trace with hash 915224662, now seen corresponding path program 1 times [2022-01-11 05:53:15,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:15,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648258527] [2022-01-11 05:53:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:15,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:15,420 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 05:53:15,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:15,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648258527] [2022-01-11 05:53:15,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648258527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:15,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:15,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:53:15,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981019629] [2022-01-11 05:53:15,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:15,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:53:15,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:15,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:53:15,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:53:15,421 INFO L87 Difference]: Start difference. First operand 283 states and 344 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 05:53:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:15,528 INFO L93 Difference]: Finished difference Result 853 states and 1044 transitions. [2022-01-11 05:53:15,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:53:15,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2022-01-11 05:53:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:15,531 INFO L225 Difference]: With dead ends: 853 [2022-01-11 05:53:15,531 INFO L226 Difference]: Without dead ends: 577 [2022-01-11 05:53:15,532 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 05:53:15,532 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 628 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:15,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [628 Valid, 665 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:53:15,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-01-11 05:53:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 283. [2022-01-11 05:53:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 280 states have (on average 1.2142857142857142) internal successors, (340), 282 states have internal predecessors, (340), 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 05:53:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 340 transitions. [2022-01-11 05:53:15,567 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 340 transitions. Word has length 39 [2022-01-11 05:53:15,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:15,568 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 340 transitions. [2022-01-11 05:53:15,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 05:53:15,568 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 340 transitions. [2022-01-11 05:53:15,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:53:15,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:15,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:15,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:53:15,569 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 05:53:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1945636844, now seen corresponding path program 1 times [2022-01-11 05:53:15,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:15,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902913575] [2022-01-11 05:53:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:15,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:15,653 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 05:53:15,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:15,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902913575] [2022-01-11 05:53:15,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902913575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:15,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:15,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:53:15,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254281380] [2022-01-11 05:53:15,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:15,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:53:15,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:15,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:53:15,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:53:15,655 INFO L87 Difference]: Start difference. First operand 283 states and 340 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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 05:53:15,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:15,843 INFO L93 Difference]: Finished difference Result 704 states and 853 transitions. [2022-01-11 05:53:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:53:15,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2022-01-11 05:53:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:15,846 INFO L225 Difference]: With dead ends: 704 [2022-01-11 05:53:15,846 INFO L226 Difference]: Without dead ends: 428 [2022-01-11 05:53:15,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:53:15,849 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 118 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:15,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1258 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:53:15,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-01-11 05:53:15,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2022-01-11 05:53:15,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 425 states have (on average 1.2094117647058824) internal successors, (514), 427 states have internal predecessors, (514), 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 05:53:15,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 514 transitions. [2022-01-11 05:53:15,913 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 514 transitions. Word has length 39 [2022-01-11 05:53:15,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:15,913 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 514 transitions. [2022-01-11 05:53:15,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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 05:53:15,913 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 514 transitions. [2022-01-11 05:53:15,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:53:15,915 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:15,915 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:15,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:53:15,915 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:53:15,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:15,916 INFO L85 PathProgramCache]: Analyzing trace with hash -354951800, now seen corresponding path program 1 times [2022-01-11 05:53:15,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:15,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060961793] [2022-01-11 05:53:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:15,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:53:15,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:15,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060961793] [2022-01-11 05:53:15,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060961793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:15,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:15,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:53:15,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593846997] [2022-01-11 05:53:15,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:15,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:53:15,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:15,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:53:15,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:53:15,973 INFO L87 Difference]: Start difference. First operand 428 states and 514 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 05:53:16,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:16,014 INFO L93 Difference]: Finished difference Result 428 states and 514 transitions. [2022-01-11 05:53:16,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:53:16,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2022-01-11 05:53:16,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:16,016 INFO L225 Difference]: With dead ends: 428 [2022-01-11 05:53:16,016 INFO L226 Difference]: Without dead ends: 269 [2022-01-11 05:53:16,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:53:16,017 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:16,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:53:16,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-01-11 05:53:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2022-01-11 05:53:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 268 states have (on average 1.2313432835820894) internal successors, (330), 268 states have internal predecessors, (330), 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 05:53:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 330 transitions. [2022-01-11 05:53:16,058 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 330 transitions. Word has length 59 [2022-01-11 05:53:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:16,059 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 330 transitions. [2022-01-11 05:53:16,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 05:53:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 330 transitions. [2022-01-11 05:53:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:53:16,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:16,061 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:16,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:53:16,062 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:53:16,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:16,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1937408798, now seen corresponding path program 1 times [2022-01-11 05:53:16,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:16,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102786414] [2022-01-11 05:53:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:16,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-11 05:53:16,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:16,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102786414] [2022-01-11 05:53:16,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102786414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:16,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:16,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:53:16,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265937052] [2022-01-11 05:53:16,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:16,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:53:16,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:16,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:53:16,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:53:16,130 INFO L87 Difference]: Start difference. First operand 269 states and 330 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 05:53:16,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:16,174 INFO L93 Difference]: Finished difference Result 452 states and 562 transitions. [2022-01-11 05:53:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:53:16,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 65 [2022-01-11 05:53:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:16,176 INFO L225 Difference]: With dead ends: 452 [2022-01-11 05:53:16,176 INFO L226 Difference]: Without dead ends: 223 [2022-01-11 05:53:16,177 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 05:53:16,179 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 87 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:16,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 233 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:53:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-01-11 05:53:16,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 163. [2022-01-11 05:53:16,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.2345679012345678) internal successors, (200), 162 states have internal predecessors, (200), 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 05:53:16,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 200 transitions. [2022-01-11 05:53:16,205 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 200 transitions. Word has length 65 [2022-01-11 05:53:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:16,205 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 200 transitions. [2022-01-11 05:53:16,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 05:53:16,205 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 200 transitions. [2022-01-11 05:53:16,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:53:16,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:16,206 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:16,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:53:16,206 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:53:16,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash 315000111, now seen corresponding path program 1 times [2022-01-11 05:53:16,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:16,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213330092] [2022-01-11 05:53:16,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:16,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:53:16,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:16,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213330092] [2022-01-11 05:53:16,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213330092] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:16,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:16,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:53:16,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341589814] [2022-01-11 05:53:16,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:16,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:53:16,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:16,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:53:16,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:53:16,278 INFO L87 Difference]: Start difference. First operand 163 states and 200 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 05:53:16,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:16,441 INFO L93 Difference]: Finished difference Result 869 states and 1057 transitions. [2022-01-11 05:53:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:53:16,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2022-01-11 05:53:16,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:16,445 INFO L225 Difference]: With dead ends: 869 [2022-01-11 05:53:16,445 INFO L226 Difference]: Without dead ends: 713 [2022-01-11 05:53:16,445 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 05:53:16,446 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 276 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:16,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 543 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:53:16,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-01-11 05:53:16,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 317. [2022-01-11 05:53:16,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.2120253164556962) internal successors, (383), 316 states have internal predecessors, (383), 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 05:53:16,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 383 transitions. [2022-01-11 05:53:16,511 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 383 transitions. Word has length 65 [2022-01-11 05:53:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:16,512 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 383 transitions. [2022-01-11 05:53:16,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 05:53:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 383 transitions. [2022-01-11 05:53:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:53:16,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:16,513 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:16,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:53:16,513 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:53:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash -439526187, now seen corresponding path program 1 times [2022-01-11 05:53:16,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:16,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107033576] [2022-01-11 05:53:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:16,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:16,583 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-11 05:53:16,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:16,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107033576] [2022-01-11 05:53:16,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107033576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:16,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:16,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:53:16,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364848538] [2022-01-11 05:53:16,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:16,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:53:16,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:16,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:53:16,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:53:16,585 INFO L87 Difference]: Start difference. First operand 317 states and 383 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 05:53:16,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:16,686 INFO L93 Difference]: Finished difference Result 679 states and 833 transitions. [2022-01-11 05:53:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:53:16,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 67 [2022-01-11 05:53:16,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:16,689 INFO L225 Difference]: With dead ends: 679 [2022-01-11 05:53:16,689 INFO L226 Difference]: Without dead ends: 435 [2022-01-11 05:53:16,690 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 05:53:16,690 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 164 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:16,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 383 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:53:16,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-01-11 05:53:16,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 323. [2022-01-11 05:53:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.2080745341614907) internal successors, (389), 322 states have internal predecessors, (389), 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 05:53:16,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 389 transitions. [2022-01-11 05:53:16,753 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 389 transitions. Word has length 67 [2022-01-11 05:53:16,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:16,753 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 389 transitions. [2022-01-11 05:53:16,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 05:53:16,753 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 389 transitions. [2022-01-11 05:53:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:53:16,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:16,754 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:16,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:53:16,755 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:53:16,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:16,755 INFO L85 PathProgramCache]: Analyzing trace with hash -945084812, now seen corresponding path program 1 times [2022-01-11 05:53:16,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:16,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003493862] [2022-01-11 05:53:16,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:16,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 05:53:16,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:16,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003493862] [2022-01-11 05:53:16,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003493862] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:53:16,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315196283] [2022-01-11 05:53:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:16,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:53:16,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:53:16,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 05:53:16,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 05:53:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:16,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-11 05:53:16,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:53:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 05:53:17,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 05:53:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 05:53:17,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315196283] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 05:53:17,279 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 05:53:17,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-01-11 05:53:17,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783215940] [2022-01-11 05:53:17,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 05:53:17,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:53:17,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:17,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:53:17,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:53:17,281 INFO L87 Difference]: Start difference. First operand 323 states and 389 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 05:53:17,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:17,394 INFO L93 Difference]: Finished difference Result 791 states and 947 transitions. [2022-01-11 05:53:17,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:53:17,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 67 [2022-01-11 05:53:17,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:17,396 INFO L225 Difference]: With dead ends: 791 [2022-01-11 05:53:17,396 INFO L226 Difference]: Without dead ends: 475 [2022-01-11 05:53:17,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:53:17,397 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 211 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:17,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 449 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:53:17,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-01-11 05:53:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 309. [2022-01-11 05:53:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.1753246753246753) internal successors, (362), 308 states have internal predecessors, (362), 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 05:53:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 362 transitions. [2022-01-11 05:53:17,455 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 362 transitions. Word has length 67 [2022-01-11 05:53:17,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:17,455 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 362 transitions. [2022-01-11 05:53:17,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 05:53:17,456 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 362 transitions. [2022-01-11 05:53:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:53:17,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:17,460 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:17,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 05:53:17,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-01-11 05:53:17,676 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:53:17,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:17,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1247091519, now seen corresponding path program 1 times [2022-01-11 05:53:17,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:17,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799187016] [2022-01-11 05:53:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:17,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:53:17,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:17,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799187016] [2022-01-11 05:53:17,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799187016] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:53:17,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:53:17,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:53:17,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775978362] [2022-01-11 05:53:17,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:53:17,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:53:17,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:17,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:53:17,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:53:17,778 INFO L87 Difference]: Start difference. First operand 309 states and 362 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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 05:53:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:18,152 INFO L93 Difference]: Finished difference Result 1595 states and 1906 transitions. [2022-01-11 05:53:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:53:18,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2022-01-11 05:53:18,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:18,159 INFO L225 Difference]: With dead ends: 1595 [2022-01-11 05:53:18,159 INFO L226 Difference]: Without dead ends: 1357 [2022-01-11 05:53:18,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-11 05:53:18,162 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 391 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:18,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 879 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:53:18,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-01-11 05:53:18,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 519. [2022-01-11 05:53:18,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 518 states have (on average 1.164092664092664) internal successors, (603), 518 states have internal predecessors, (603), 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 05:53:18,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 603 transitions. [2022-01-11 05:53:18,260 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 603 transitions. Word has length 67 [2022-01-11 05:53:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:18,260 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 603 transitions. [2022-01-11 05:53:18,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 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 05:53:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 603 transitions. [2022-01-11 05:53:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:53:18,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:53:18,262 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:53:18,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:53:18,262 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:53:18,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:53:18,263 INFO L85 PathProgramCache]: Analyzing trace with hash -336409139, now seen corresponding path program 1 times [2022-01-11 05:53:18,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:53:18,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707901818] [2022-01-11 05:53:18,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:18,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:53:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 05:53:18,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:53:18,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707901818] [2022-01-11 05:53:18,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707901818] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:53:18,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558324985] [2022-01-11 05:53:18,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:53:18,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:53:18,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:53:18,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 05:53:18,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 05:53:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:53:18,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-11 05:53:18,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:53:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 05:53:19,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 05:53:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 05:53:19,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558324985] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 05:53:19,253 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 05:53:19,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 14 [2022-01-11 05:53:19,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409608460] [2022-01-11 05:53:19,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 05:53:19,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-11 05:53:19,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:53:19,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-11 05:53:19,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-01-11 05:53:19,255 INFO L87 Difference]: Start difference. First operand 519 states and 603 transitions. Second operand has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 14 states have internal predecessors, (172), 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 05:53:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:53:20,195 INFO L93 Difference]: Finished difference Result 2679 states and 3187 transitions. [2022-01-11 05:53:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-11 05:53:20,196 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 14 states have internal predecessors, (172), 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 69 [2022-01-11 05:53:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:53:20,196 INFO L225 Difference]: With dead ends: 2679 [2022-01-11 05:53:20,196 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 05:53:20,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2022-01-11 05:53:20,200 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 1077 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:53:20,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 1665 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:53:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 05:53:20,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 05:53:20,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:53:20,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 05:53:20,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2022-01-11 05:53:20,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:53:20,201 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 05:53:20,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 14 states have internal predecessors, (172), 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 05:53:20,202 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 05:53:20,202 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 05:53:20,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 05:53:20,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 05:53:20,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 05:53:20,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-11 05:53:20,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-11 05:53:20,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 05:53:26,190 WARN L228 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 153 DAG size of output: 150 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-11 05:53:46,055 WARN L228 SmtUtils]: Spent 13.79s on a formula simplification. DAG size of input: 307 DAG size of output: 304 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-11 05:53:54,867 WARN L228 SmtUtils]: Spent 8.81s on a formula simplification. DAG size of input: 196 DAG size of output: 193 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-11 05:54:08,957 WARN L228 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 244 DAG size of output: 241 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-11 05:54:14,175 WARN L228 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 226 DAG size of output: 223 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)