/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:01:50,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:01:50,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:01:50,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:01:50,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:01:50,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:01:50,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:01:50,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:01:50,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:01:50,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:01:50,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:01:50,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:01:50,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:01:50,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:01:50,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:01:50,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:01:50,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:01:50,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:01:50,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:01:50,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:01:50,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:01:50,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:01:50,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:01:50,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:01:50,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:01:50,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:01:50,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:01:50,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:01:50,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:01:50,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:01:50,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:01:50,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:01:50,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:01:50,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:01:50,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:01:50,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:01:50,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:01:50,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:01:50,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:01:50,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:01:50,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:01:50,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 12:01:50,262 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:01:50,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:01:50,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:01:50,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:01:50,267 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:01:50,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:01:50,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:01:50,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:01:50,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:01:50,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:01:50,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:01:50,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:01:50,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:01:50,270 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:01:50,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:01:50,270 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:01:50,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:01:50,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:01:50,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:01:50,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:01:50,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:01:50,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:01:50,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:01:50,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:01:50,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:01:50,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:01:50,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:01:50,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:01:50,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:01:50,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:01:50,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:01:50,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:01:50,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:01:50,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:01:50,763 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:01:50,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-10-29 12:01:50,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e521ae0d5/fcd4af4b834d42bc979ee464c5d0d236/FLAGec1c94e1b [2020-10-29 12:01:51,542 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:01:51,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-10-29 12:01:51,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e521ae0d5/fcd4af4b834d42bc979ee464c5d0d236/FLAGec1c94e1b [2020-10-29 12:01:51,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e521ae0d5/fcd4af4b834d42bc979ee464c5d0d236 [2020-10-29 12:01:51,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:01:51,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:01:51,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:01:51,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:01:51,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:01:51,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:01:51" (1/1) ... [2020-10-29 12:01:51,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a73188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:51, skipping insertion in model container [2020-10-29 12:01:51,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:01:51" (1/1) ... [2020-10-29 12:01:51,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:01:51,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:01:52,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:01:52,144 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:01:52,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:01:52,179 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:01:52,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52 WrapperNode [2020-10-29 12:01:52,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:01:52,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:01:52,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:01:52,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:01:52,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (1/1) ... [2020-10-29 12:01:52,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (1/1) ... [2020-10-29 12:01:52,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (1/1) ... [2020-10-29 12:01:52,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (1/1) ... [2020-10-29 12:01:52,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (1/1) ... [2020-10-29 12:01:52,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (1/1) ... [2020-10-29 12:01:52,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (1/1) ... [2020-10-29 12:01:52,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:01:52,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:01:52,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:01:52,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:01:52,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:01:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:01:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:01:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:01:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-10-29 12:01:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:01:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:01:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:01:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:01:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:01:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 12:01:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-10-29 12:01:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:01:52,606 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:01:52,607 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 12:01:52,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:01:52 BoogieIcfgContainer [2020-10-29 12:01:52,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:01:52,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:01:52,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:01:52,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:01:52,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:01:51" (1/3) ... [2020-10-29 12:01:52,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5906b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:01:52, skipping insertion in model container [2020-10-29 12:01:52,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:01:52" (2/3) ... [2020-10-29 12:01:52,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5906b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:01:52, skipping insertion in model container [2020-10-29 12:01:52,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:01:52" (3/3) ... [2020-10-29 12:01:52,620 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-10-29 12:01:52,638 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:01:52,644 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:01:52,662 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:01:52,694 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:01:52,695 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:01:52,695 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:01:52,695 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:01:52,695 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:01:52,695 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:01:52,696 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:01:52,696 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:01:52,738 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-29 12:01:52,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-29 12:01:52,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:01:52,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:01:52,760 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:01:52,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:01:52,777 INFO L82 PathProgramCache]: Analyzing trace with hash -874294957, now seen corresponding path program 1 times [2020-10-29 12:01:52,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:01:52,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829878515] [2020-10-29 12:01:52,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:01:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:53,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:53,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:53,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 12:01:53,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:53,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-29 12:01:53,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:53,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:01:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:01:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:01:53,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:01:53,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:01:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:53,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:53,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:01:53,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:53,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:01:53,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:53,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:01:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:01:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:53,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:01:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:53,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:53,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:53,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:01:53,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:53,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:01:53,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:53,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:01:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:01:53,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:53,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:01:53,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829878515] [2020-10-29 12:01:53,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:01:53,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 12:01:53,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179172087] [2020-10-29 12:01:53,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:01:53,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:01:53,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:01:53,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:01:53,756 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2020-10-29 12:01:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:01:54,535 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-10-29 12:01:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:01:54,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-29 12:01:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:01:54,549 INFO L225 Difference]: With dead ends: 39 [2020-10-29 12:01:54,549 INFO L226 Difference]: Without dead ends: 21 [2020-10-29 12:01:54,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:01:54,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-29 12:01:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-29 12:01:54,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-29 12:01:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-29 12:01:54,606 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2020-10-29 12:01:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:01:54,606 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-29 12:01:54,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:01:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-29 12:01:54,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 12:01:54,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:01:54,609 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:01:54,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:01:54,610 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:01:54,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:01:54,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1992247557, now seen corresponding path program 1 times [2020-10-29 12:01:54,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:01:54,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933796782] [2020-10-29 12:01:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:01:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:54,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:54,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:54,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 12:01:54,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:54,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-29 12:01:54,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:54,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:01:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:01:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:01:54,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:55,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:01:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:55,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:55,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:55,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:01:55,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:01:55,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:55,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:01:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:01:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:55,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:01:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:55,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:55,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:55,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:01:55,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:55,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 12:01:55,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:55,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:01:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:01:55,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:55,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:01:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:55,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:55,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:55,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:01:55,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:55,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:01:55,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:55,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:01:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:01:55,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 12:01:55,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933796782] [2020-10-29 12:01:55,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:01:55,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 12:01:55,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310258584] [2020-10-29 12:01:55,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:01:55,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:01:55,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:01:55,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:01:55,323 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 10 states. [2020-10-29 12:01:56,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:01:56,011 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-10-29 12:01:56,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 12:01:56,012 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-29 12:01:56,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:01:56,014 INFO L225 Difference]: With dead ends: 29 [2020-10-29 12:01:56,014 INFO L226 Difference]: Without dead ends: 24 [2020-10-29 12:01:56,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:01:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-29 12:01:56,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-29 12:01:56,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-29 12:01:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-29 12:01:56,024 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 22 [2020-10-29 12:01:56,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:01:56,024 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-29 12:01:56,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:01:56,024 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-29 12:01:56,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 12:01:56,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:01:56,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:01:56,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:01:56,026 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:01:56,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:01:56,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1177737683, now seen corresponding path program 2 times [2020-10-29 12:01:56,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:01:56,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033180473] [2020-10-29 12:01:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:01:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:56,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:56,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:56,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 12:01:56,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:56,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-29 12:01:56,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:56,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 12:01:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:01:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 12:01:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:01:56,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:01:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:56,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:56,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:56,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:01:56,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:01:56,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:56,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:01:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:01:56,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:01:56,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:01:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:56,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:56,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:56,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:01:56,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-29 12:01:56,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:56,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:01:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:01:56,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:56,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:01:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:56,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:56,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:56,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:01:56,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 12:01:56,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:56,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:01:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:01:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:01:56,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:01:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:56,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:56,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:56,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:01:56,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:56,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:01:56,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:56,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:01:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:01:56,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:56,866 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 12:01:56,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033180473] [2020-10-29 12:01:56,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:01:56,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 12:01:56,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124307955] [2020-10-29 12:01:56,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:01:56,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:01:56,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:01:56,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:01:56,869 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 12 states. [2020-10-29 12:01:57,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:01:57,566 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-10-29 12:01:57,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 12:01:57,567 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-10-29 12:01:57,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:01:57,568 INFO L225 Difference]: With dead ends: 32 [2020-10-29 12:01:57,568 INFO L226 Difference]: Without dead ends: 27 [2020-10-29 12:01:57,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2020-10-29 12:01:57,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-29 12:01:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-29 12:01:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-29 12:01:57,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-29 12:01:57,577 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 28 [2020-10-29 12:01:57,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:01:57,577 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-29 12:01:57,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:01:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-29 12:01:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-29 12:01:57,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:01:57,579 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:01:57,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:01:57,579 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:01:57,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:01:57,580 INFO L82 PathProgramCache]: Analyzing trace with hash -859595771, now seen corresponding path program 3 times [2020-10-29 12:01:57,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:01:57,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854495990] [2020-10-29 12:01:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:01:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:57,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:57,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:57,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:01:57,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:57,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-29 12:01:57,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:57,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:57,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 12:01:57,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:01:57,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 12:01:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:01:58,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:01:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:58,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:58,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:58,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:01:58,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:01:58,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:58,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:01:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:01:58,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:01:58,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:01:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:58,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:58,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:58,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:01:58,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:58,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-29 12:01:58,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:58,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:58,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:01:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:01:58,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:58,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:01:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:58,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:58,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:58,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:01:58,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:58,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 12:01:58,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:58,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 12:01:58,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:58,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:01:58,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:58,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:01:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:58,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:58,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:58,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:01:58,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:58,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 12:01:58,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:58,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:01:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:01:58,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:58,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:01:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:58,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:58,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:01:58,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:01:58,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:01:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:01:58,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:01:58,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:01:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:01:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:01:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:01:58,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:01:58,575 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 12:01:58,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854495990] [2020-10-29 12:01:58,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:01:58,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 12:01:58,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657448946] [2020-10-29 12:01:58,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:01:58,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:01:58,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:01:58,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:01:58,578 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 15 states. [2020-10-29 12:01:59,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:01:59,402 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-10-29 12:01:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 12:01:59,403 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2020-10-29 12:01:59,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:01:59,404 INFO L225 Difference]: With dead ends: 35 [2020-10-29 12:01:59,404 INFO L226 Difference]: Without dead ends: 30 [2020-10-29 12:01:59,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2020-10-29 12:01:59,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-29 12:01:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-29 12:01:59,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-29 12:01:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-29 12:01:59,425 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 34 [2020-10-29 12:01:59,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:01:59,425 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-29 12:01:59,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:01:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-29 12:01:59,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-29 12:01:59,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:01:59,431 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:01:59,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:01:59,431 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:01:59,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:01:59,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1203654061, now seen corresponding path program 4 times [2020-10-29 12:01:59,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:01:59,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402283252] [2020-10-29 12:01:59,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:01:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:01:59,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:01:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:02:00,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:02:00,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:02:00,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:02:00,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-10-29 12:02:00,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:02:00,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:02:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:02:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 12:02:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 12:02:00,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:02:00,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:02:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:02:00,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:02:00,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:02:00,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:02:00,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:02:00,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:02:00,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:02:00,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:02:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:02:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:02:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:02:00,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:02:00,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:02:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:02:00,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:02:00,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:02:00,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:02:00,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:02:00,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:02:00,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-29 12:02:00,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:02:00,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:02:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 12:02:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:02:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 12:02:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:02:00,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:02:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:02:00,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:02:00,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:02:00,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:02:00,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:02:00,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 12:02:00,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:02:00,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:02:00,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:02:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:02:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 12:02:00,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:02:00,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:02:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:02:00,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:02:00,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:02:00,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:02:00,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:02:00,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 12:02:00,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:02:00,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:02:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:02:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:02:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:02:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:02:00,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:02:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:02:00,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:02:00,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:02:00,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:02:00,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:02:00,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:02:00,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:02:00,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:02:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:02:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:02:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:02:00,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:02:00,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:02:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:02:00,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:02:00,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:02:00,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:02:00,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:02:00,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:02:00,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:02:00,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:02:00,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:02:00,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:02:00,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:02:00,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:02:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-29 12:02:00,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402283252] [2020-10-29 12:02:00,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:02:00,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 12:02:00,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18460829] [2020-10-29 12:02:00,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:02:00,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:02:00,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:02:00,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:02:00,750 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2020-10-29 12:02:01,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:02:01,485 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-10-29 12:02:01,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 12:02:01,486 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 40 [2020-10-29 12:02:01,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:02:01,486 INFO L225 Difference]: With dead ends: 30 [2020-10-29 12:02:01,486 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 12:02:01,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:02:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 12:02:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 12:02:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 12:02:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 12:02:01,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2020-10-29 12:02:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:02:01,489 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 12:02:01,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:02:01,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 12:02:01,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 12:02:01,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:02:01,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 12:02:01,648 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-29 12:02:01,649 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-29 12:02:01,649 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-29 12:02:01,649 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-29 12:02:01,649 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 12:02:01,649 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-29 12:02:01,649 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 12:02:01,650 INFO L274 CegarLoopResult]: For program point hanoiEXIT(lines 18 23) no Hoare annotation was computed. [2020-10-29 12:02:01,650 INFO L277 CegarLoopResult]: At program point hanoiENTRY(lines 18 23) the Hoare annotation is: true [2020-10-29 12:02:01,650 INFO L274 CegarLoopResult]: For program point hanoiFINAL(lines 18 23) no Hoare annotation was computed. [2020-10-29 12:02:01,650 INFO L270 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2020-10-29 12:02:01,650 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-10-29 12:02:01,650 INFO L274 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-10-29 12:02:01,650 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 12:02:01,650 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 12:02:01,650 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 12:02:01,651 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 12:02:01,651 INFO L274 CegarLoopResult]: For program point L32(lines 32 36) no Hoare annotation was computed. [2020-10-29 12:02:01,651 INFO L270 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (<= main_~n~0 31) [2020-10-29 12:02:01,651 INFO L274 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-10-29 12:02:01,651 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 26 37) the Hoare annotation is: true [2020-10-29 12:02:01,651 INFO L274 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-10-29 12:02:01,651 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 26 37) no Hoare annotation was computed. [2020-10-29 12:02:01,651 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 26 37) no Hoare annotation was computed. [2020-10-29 12:02:01,651 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: false [2020-10-29 12:02:01,652 INFO L274 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-10-29 12:02:01,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:02:01 BoogieIcfgContainer [2020-10-29 12:02:01,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 12:02:01,660 INFO L168 Benchmark]: Toolchain (without parser) took 9738.87 ms. Allocated memory was 152.0 MB in the beginning and 224.4 MB in the end (delta: 72.4 MB). Free memory was 128.3 MB in the beginning and 179.7 MB in the end (delta: -51.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 8.0 GB. [2020-10-29 12:02:01,661 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 152.0 MB. Free memory was 127.4 MB in the beginning and 127.3 MB in the end (delta: 95.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 12:02:01,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.49 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 118.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 12:02:01,663 INFO L168 Benchmark]: Boogie Preprocessor took 37.12 ms. Allocated memory is still 152.0 MB. Free memory was 118.2 MB in the beginning and 116.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 12:02:01,664 INFO L168 Benchmark]: RCFGBuilder took 390.71 ms. Allocated memory is still 152.0 MB. Free memory was 116.9 MB in the beginning and 104.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-29 12:02:01,664 INFO L168 Benchmark]: TraceAbstraction took 9045.79 ms. Allocated memory was 152.0 MB in the beginning and 224.4 MB in the end (delta: 72.4 MB). Free memory was 103.8 MB in the beginning and 179.7 MB in the end (delta: -75.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 12:02:01,668 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 152.0 MB. Free memory was 127.4 MB in the beginning and 127.3 MB in the end (delta: 95.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 251.49 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 118.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.12 ms. Allocated memory is still 152.0 MB. Free memory was 118.2 MB in the beginning and 116.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 390.71 ms. Allocated memory is still 152.0 MB. Free memory was 116.9 MB in the beginning and 104.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9045.79 ms. Allocated memory was 152.0 MB in the beginning and 224.4 MB in the end (delta: 72.4 MB). Free memory was 103.8 MB in the beginning and 179.7 MB in the end (delta: -75.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.7s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 95 SDslu, 234 SDs, 0 SdLazy, 737 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 15 PreInvPairs, 15 NumberOfFragments, 43 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 122 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 15303 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 56/100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...