/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/eca-rers2012/Problem01_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:04:45,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:04:45,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:04:45,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:04:45,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:04:45,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:04:45,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:04:45,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:04:45,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:04:45,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:04:45,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:04:45,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:04:45,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:04:45,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:04:45,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:04:45,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:04:45,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:04:45,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:04:45,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:04:45,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:04:45,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:04:45,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:04:45,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:04:45,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:04:45,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:04:45,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:04:45,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:04:45,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:04:45,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:04:45,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:04:45,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:04:45,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:04:45,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:04:45,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:04:45,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:04:45,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:04:45,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:04:45,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:04:45,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:04:45,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:04:45,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:04:45,197 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 [2020-10-28 10:04:45,225 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:04:45,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:04:45,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:04:45,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:04:45,227 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:04:45,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:04:45,227 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:04:45,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:04:45,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:04:45,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:04:45,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:04:45,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:04:45,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:04:45,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:04:45,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:04:45,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:04:45,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:04:45,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:04:45,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:04:45,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:04:45,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:04:45,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:04:45,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:04:45,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:04:45,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:04:45,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:04:45,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:04:45,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:04:45,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:04:45,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:04:45,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:04:45,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:04:45,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:04:45,679 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:04:45,680 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:04:45,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label03.c [2020-10-28 10:04:45,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c613db8d/40241748bb8e418a884ab9a1c8d6562c/FLAG53ffd4439 [2020-10-28 10:04:46,516 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:04:46,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label03.c [2020-10-28 10:04:46,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c613db8d/40241748bb8e418a884ab9a1c8d6562c/FLAG53ffd4439 [2020-10-28 10:04:46,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c613db8d/40241748bb8e418a884ab9a1c8d6562c [2020-10-28 10:04:46,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:04:46,726 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:04:46,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:04:46,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:04:46,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:04:46,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:04:46" (1/1) ... [2020-10-28 10:04:46,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ddce888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:46, skipping insertion in model container [2020-10-28 10:04:46,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:04:46" (1/1) ... [2020-10-28 10:04:46,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:04:46,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:04:47,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:04:47,264 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:04:47,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:04:47,513 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:04:47,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47 WrapperNode [2020-10-28 10:04:47,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:04:47,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:04:47,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:04:47,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:04:47,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (1/1) ... [2020-10-28 10:04:47,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (1/1) ... [2020-10-28 10:04:47,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (1/1) ... [2020-10-28 10:04:47,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (1/1) ... [2020-10-28 10:04:47,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (1/1) ... [2020-10-28 10:04:47,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (1/1) ... [2020-10-28 10:04:47,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (1/1) ... [2020-10-28 10:04:47,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:04:47,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:04:47,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:04:47,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:04:47,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (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 [2020-10-28 10:04:47,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:04:47,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:04:47,717 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:04:47,717 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:04:47,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:04:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:04:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:04:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:04:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:04:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:04:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:04:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:04:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:04:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:04:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:04:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:04:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:04:47,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:04:47,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:04:49,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:04:49,275 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:04:49,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:04:49 BoogieIcfgContainer [2020-10-28 10:04:49,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:04:49,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:04:49,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:04:49,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:04:49,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:04:46" (1/3) ... [2020-10-28 10:04:49,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b367a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:04:49, skipping insertion in model container [2020-10-28 10:04:49,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:04:47" (2/3) ... [2020-10-28 10:04:49,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b367a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:04:49, skipping insertion in model container [2020-10-28 10:04:49,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:04:49" (3/3) ... [2020-10-28 10:04:49,286 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label03.c [2020-10-28 10:04:49,297 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:04:49,303 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:04:49,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:04:49,343 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:04:49,343 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:04:49,343 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:04:49,343 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:04:49,343 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:04:49,344 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:04:49,344 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:04:49,344 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:04:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-28 10:04:49,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-28 10:04:49,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:04:49,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:04:49,383 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:04:49,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:04:49,389 INFO L82 PathProgramCache]: Analyzing trace with hash -66053839, now seen corresponding path program 1 times [2020-10-28 10:04:49,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:04:49,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889917887] [2020-10-28 10:04:49,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:04:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:04:49,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:04:50,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:04:51,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:04:51,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 10:04:51,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:04:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2071 [2020-10-28 10:04:51,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:04:51,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:04:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:04:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:04:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-28 10:04:51,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 10:04:52,093 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:04:52,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:04:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:04:52,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:04:52,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:04:52,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:04:52,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:04:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 10:04:52,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:04:52,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:04:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:04:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:04:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:04:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:04:52,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:04:52,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889917887] [2020-10-28 10:04:52,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:04:52,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:04:52,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070193564] [2020-10-28 10:04:52,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:04:52,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:04:52,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:04:52,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:04:52,239 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-28 10:04:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:04:54,027 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-28 10:04:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:04:54,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2020-10-28 10:04:54,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:04:54,044 INFO L225 Difference]: With dead ends: 562 [2020-10-28 10:04:54,044 INFO L226 Difference]: Without dead ends: 287 [2020-10-28 10:04:54,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:04:54,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-28 10:04:54,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-28 10:04:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-28 10:04:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-28 10:04:54,127 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 136 [2020-10-28 10:04:54,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:04:54,128 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-28 10:04:54,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:04:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-28 10:04:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-28 10:04:54,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:04:54,134 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:04:54,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:04:54,134 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:04:54,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:04:54,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1421481618, now seen corresponding path program 1 times [2020-10-28 10:04:54,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:04:54,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050039545] [2020-10-28 10:04:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:04:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:04:54,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:04:54,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:04:56,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:04:58,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:04:58,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-28 10:04:58,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:04:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3850 [2020-10-28 10:04:58,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:04:58,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:04:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:04:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:04:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 10:04:58,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:04:58,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:04:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:04:58,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:04:58,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:04:58,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:04:58,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:04:58,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:04:58,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:04:58,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:04:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:04:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:04:58,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:04:58,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:04:58,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:04:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:04:58,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:04:58,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:04:58,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:04:58,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:04:58,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:04:58,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:04:58,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:04:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:04:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:04:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:04:58,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:04:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:04:58,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050039545] [2020-10-28 10:04:58,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:04:58,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:04:58,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617333785] [2020-10-28 10:04:58,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:04:58,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:04:58,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:04:58,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:04:58,279 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 5 states. [2020-10-28 10:04:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:04:59,917 INFO L93 Difference]: Finished difference Result 836 states and 1204 transitions. [2020-10-28 10:04:59,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:04:59,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-28 10:04:59,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:04:59,927 INFO L225 Difference]: With dead ends: 836 [2020-10-28 10:04:59,927 INFO L226 Difference]: Without dead ends: 561 [2020-10-28 10:04:59,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:04:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-28 10:04:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 420. [2020-10-28 10:04:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-28 10:04:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 577 transitions. [2020-10-28 10:04:59,971 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 577 transitions. Word has length 145 [2020-10-28 10:04:59,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:04:59,972 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 577 transitions. [2020-10-28 10:04:59,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:04:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 577 transitions. [2020-10-28 10:04:59,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-28 10:04:59,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:04:59,977 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:04:59,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:04:59,977 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:04:59,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:04:59,978 INFO L82 PathProgramCache]: Analyzing trace with hash 833084674, now seen corresponding path program 1 times [2020-10-28 10:04:59,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:04:59,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758071180] [2020-10-28 10:04:59,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:05:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:00,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:00,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:00,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:01,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:01,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-28 10:05:01,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:05:01,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1242 [2020-10-28 10:05:01,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:01,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:01,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:05:01,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:05:01,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 10:05:01,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:01,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:05:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:01,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:01,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:01,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:05:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:05:01,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:01,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:05:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:05:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:05:01,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:05:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:01,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:01,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:01,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:05:01,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:01,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 10:05:01,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:01,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:05:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:05:01,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:05:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:05:01,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758071180] [2020-10-28 10:05:01,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:05:01,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:05:01,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873634340] [2020-10-28 10:05:01,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:05:01,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:05:01,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:05:01,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:05:01,575 INFO L87 Difference]: Start difference. First operand 420 states and 577 transitions. Second operand 5 states. [2020-10-28 10:05:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:05:02,996 INFO L93 Difference]: Finished difference Result 1112 states and 1560 transitions. [2020-10-28 10:05:03,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:05:03,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-10-28 10:05:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:05:03,008 INFO L225 Difference]: With dead ends: 1112 [2020-10-28 10:05:03,009 INFO L226 Difference]: Without dead ends: 424 [2020-10-28 10:05:03,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:05:03,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-28 10:05:03,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 420. [2020-10-28 10:05:03,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-28 10:05:03,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 558 transitions. [2020-10-28 10:05:03,069 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 558 transitions. Word has length 153 [2020-10-28 10:05:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:05:03,070 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 558 transitions. [2020-10-28 10:05:03,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:05:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 558 transitions. [2020-10-28 10:05:03,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-28 10:05:03,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:05:03,079 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:05:03,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:05:03,080 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:05:03,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:05:03,081 INFO L82 PathProgramCache]: Analyzing trace with hash 443297655, now seen corresponding path program 1 times [2020-10-28 10:05:03,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:05:03,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254935736] [2020-10-28 10:05:03,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:05:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:03,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:03,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:03,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:04,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:04,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:04,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-28 10:05:04,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:05:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1500 [2020-10-28 10:05:04,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:04,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:05:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-28 10:05:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 10:05:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:04,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:05:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:04,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:04,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:04,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:05:04,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:04,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:05:04,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:04,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:05:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:05:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:04,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:05:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:04,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:04,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:04,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 10:05:04,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:04,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 10:05:04,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:04,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:05:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 10:05:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:04,856 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:05:04,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254935736] [2020-10-28 10:05:04,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:05:04,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:05:04,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469117319] [2020-10-28 10:05:04,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:05:04,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:05:04,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:05:04,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:05:04,859 INFO L87 Difference]: Start difference. First operand 420 states and 558 transitions. Second operand 5 states. [2020-10-28 10:05:06,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:05:06,311 INFO L93 Difference]: Finished difference Result 1251 states and 1700 transitions. [2020-10-28 10:05:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:05:06,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-10-28 10:05:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:05:06,320 INFO L225 Difference]: With dead ends: 1251 [2020-10-28 10:05:06,320 INFO L226 Difference]: Without dead ends: 837 [2020-10-28 10:05:06,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:05:06,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-10-28 10:05:06,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 833. [2020-10-28 10:05:06,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-10-28 10:05:06,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1080 transitions. [2020-10-28 10:05:06,363 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1080 transitions. Word has length 156 [2020-10-28 10:05:06,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:05:06,364 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 1080 transitions. [2020-10-28 10:05:06,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:05:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1080 transitions. [2020-10-28 10:05:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-28 10:05:06,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:05:06,368 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:05:06,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:05:06,369 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:05:06,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:05:06,369 INFO L82 PathProgramCache]: Analyzing trace with hash 758265514, now seen corresponding path program 1 times [2020-10-28 10:05:06,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:05:06,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86291554] [2020-10-28 10:05:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:05:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:06,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:08,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:09,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:10,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:10,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 10:05:10,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:05:10,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3750 [2020-10-28 10:05:10,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:10,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:05:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 10:05:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 10:05:10,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:10,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:05:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:10,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:10,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:10,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:05:10,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:10,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:05:10,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:10,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:05:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:05:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:05:10,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:05:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:10,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:10,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:10,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:05:10,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:10,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 10:05:10,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:10,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:05:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 10:05:10,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 10:05:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:05:10,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86291554] [2020-10-28 10:05:10,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:05:10,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:05:10,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851382704] [2020-10-28 10:05:10,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:05:10,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:05:10,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:05:10,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:05:10,518 INFO L87 Difference]: Start difference. First operand 833 states and 1080 transitions. Second operand 5 states. [2020-10-28 10:05:10,858 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 10:05:12,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:05:12,022 INFO L93 Difference]: Finished difference Result 2214 states and 2949 transitions. [2020-10-28 10:05:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:05:12,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-10-28 10:05:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:05:12,033 INFO L225 Difference]: With dead ends: 2214 [2020-10-28 10:05:12,034 INFO L226 Difference]: Without dead ends: 1387 [2020-10-28 10:05:12,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:05:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2020-10-28 10:05:12,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1248. [2020-10-28 10:05:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1248 states. [2020-10-28 10:05:12,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1570 transitions. [2020-10-28 10:05:12,116 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1570 transitions. Word has length 165 [2020-10-28 10:05:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:05:12,117 INFO L481 AbstractCegarLoop]: Abstraction has 1248 states and 1570 transitions. [2020-10-28 10:05:12,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:05:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1570 transitions. [2020-10-28 10:05:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-28 10:05:12,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:05:12,125 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:05:12,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:05:12,125 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:05:12,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:05:12,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1487906391, now seen corresponding path program 1 times [2020-10-28 10:05:12,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:05:12,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581257777] [2020-10-28 10:05:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:05:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:12,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:12,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:14,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:14,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:15,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:15,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-28 10:05:15,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:05:15,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3778 [2020-10-28 10:05:15,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:15,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:15,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:05:15,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-28 10:05:15,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 10:05:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:16,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:05:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:16,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:16,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:16,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:05:16,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:16,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:05:16,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:16,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:16,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:05:16,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:16,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:05:16,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:16,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:05:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:16,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:16,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:16,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 10:05:16,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:16,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 10:05:16,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:16,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:16,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:05:16,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:16,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 10:05:16,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:05:16,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581257777] [2020-10-28 10:05:16,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:05:16,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:05:16,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549681399] [2020-10-28 10:05:16,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:05:16,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:05:16,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:05:16,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:05:16,209 INFO L87 Difference]: Start difference. First operand 1248 states and 1570 transitions. Second operand 5 states. [2020-10-28 10:05:17,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:05:17,458 INFO L93 Difference]: Finished difference Result 3042 states and 3942 transitions. [2020-10-28 10:05:17,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:05:17,458 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-10-28 10:05:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:05:17,469 INFO L225 Difference]: With dead ends: 3042 [2020-10-28 10:05:17,469 INFO L226 Difference]: Without dead ends: 1800 [2020-10-28 10:05:17,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:05:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2020-10-28 10:05:17,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1796. [2020-10-28 10:05:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1796 states. [2020-10-28 10:05:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2274 transitions. [2020-10-28 10:05:17,559 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2274 transitions. Word has length 172 [2020-10-28 10:05:17,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:05:17,560 INFO L481 AbstractCegarLoop]: Abstraction has 1796 states and 2274 transitions. [2020-10-28 10:05:17,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:05:17,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2274 transitions. [2020-10-28 10:05:17,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-28 10:05:17,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:05:17,567 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:05:17,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:05:17,568 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:05:17,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:05:17,568 INFO L82 PathProgramCache]: Analyzing trace with hash -787363334, now seen corresponding path program 1 times [2020-10-28 10:05:17,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:05:17,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109524415] [2020-10-28 10:05:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:05:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:17,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:17,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:18,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:18,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-28 10:05:18,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:05:18,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-10-28 10:05:18,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:18,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:05:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-28 10:05:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 10:05:18,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:18,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:05:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:18,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:05:18,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:05:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:18,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:05:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:05:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:05:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:05:18,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:05:18,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:05:18,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 10:05:18,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:05:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 10:05:18,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:05:18,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:05:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:05:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:05:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 10:05:18,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:05:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:05:18,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109524415] [2020-10-28 10:05:18,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:05:18,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 10:05:18,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028767825] [2020-10-28 10:05:18,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 10:05:18,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:05:18,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 10:05:18,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:05:18,994 INFO L87 Difference]: Start difference. First operand 1796 states and 2274 transitions. Second operand 6 states. [2020-10-28 10:05:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:05:21,021 INFO L93 Difference]: Finished difference Result 4272 states and 5482 transitions. [2020-10-28 10:05:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 10:05:21,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2020-10-28 10:05:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:05:21,024 INFO L225 Difference]: With dead ends: 4272 [2020-10-28 10:05:21,024 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 10:05:21,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:05:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 10:05:21,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 10:05:21,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 10:05:21,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 10:05:21,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2020-10-28 10:05:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:05:21,036 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 10:05:21,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 10:05:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 10:05:21,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 10:05:21,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:05:21,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 10:05:21,511 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-10-28 10:05:22,353 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 43 [2020-10-28 10:05:22,595 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 10:05:22,595 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 10:05:22,595 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 10:05:22,596 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 10:05:22,596 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 10:05:22,596 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-28 10:05:22,596 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 10:05:22,596 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,598 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,598 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,598 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,598 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,598 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,598 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-28 10:05:22,598 INFO L270 CegarLoopResult]: At program point L565(line 565) the Hoare annotation is: (and (not (= 14 |old(~a8~0)|)) (not (= 6 |old(~a16~0)|)) (not (<= |old(~a16~0)| 4)) (= |old(~a21~0)| 1) (not (= 15 |old(~a8~0)|))) [2020-10-28 10:05:22,599 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-28 10:05:22,599 INFO L274 CegarLoopResult]: For program point L565-1(line 565) no Hoare annotation was computed. [2020-10-28 10:05:22,599 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-28 10:05:22,599 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-28 10:05:22,599 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-28 10:05:22,600 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-28 10:05:22,600 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-28 10:05:22,600 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-28 10:05:22,600 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-28 10:05:22,600 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-28 10:05:22,600 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-28 10:05:22,601 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,602 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,603 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-28 10:05:22,603 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-28 10:05:22,603 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-28 10:05:22,603 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-28 10:05:22,603 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-28 10:05:22,603 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-28 10:05:22,603 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-28 10:05:22,604 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-28 10:05:22,604 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-28 10:05:22,604 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-28 10:05:22,604 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-28 10:05:22,604 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-28 10:05:22,604 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-28 10:05:22,604 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-28 10:05:22,605 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-28 10:05:22,606 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-28 10:05:22,607 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,608 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,609 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-28 10:05:22,610 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-28 10:05:22,610 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-28 10:05:22,610 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-28 10:05:22,610 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-28 10:05:22,610 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-28 10:05:22,610 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-28 10:05:22,611 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-28 10:05:22,612 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-28 10:05:22,612 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-28 10:05:22,612 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-28 10:05:22,612 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-28 10:05:22,612 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-28 10:05:22,612 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-28 10:05:22,613 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-28 10:05:22,614 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-28 10:05:22,614 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-28 10:05:22,614 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-28 10:05:22,614 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,614 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,614 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|))) (let ((.cse5 (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a8~0 |old(~a8~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a8~0 15)) (not (= 15 |old(~a8~0)|))) (or .cse5 (= |old(~a21~0)| 1)) (or (not (= 6 |old(~a16~0)|)) .cse5) (or (not (<= |old(~a16~0)| 4)) .cse5) (or (not (= 14 |old(~a8~0)|)) (and .cse0 .cse1 .cse2 .cse3 (= 14 ~a8~0) .cse4))))) [2020-10-28 10:05:22,614 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,614 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,614 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-28 10:05:22,615 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-28 10:05:22,616 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,617 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-28 10:05:22,618 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-28 10:05:22,619 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-28 10:05:22,619 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-28 10:05:22,619 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-28 10:05:22,619 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 10:05:22,619 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a8~0 15) (= ~a17~0 1)) [2020-10-28 10:05:22,619 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 10:05:22,619 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 10:05:22,619 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 15)) (not (= 15 |old(~a8~0)|))) [2020-10-28 10:05:22,619 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-28 10:05:22,619 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (= 14 ~a8~0) (= ~a16~0 6) (<= ~a16~0 4) (not (= ~a21~0 1)) (= ~a8~0 15) (not (= 15 |old(~a8~0)|))) [2020-10-28 10:05:22,620 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-28 10:05:22,620 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-28 10:05:22,620 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (= 14 ~a8~0) (= ~a16~0 6) (<= ~a16~0 4) (not (= ~a21~0 1)) (= ~a8~0 15) (not (= 15 |old(~a8~0)|))) [2020-10-28 10:05:22,620 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-28 10:05:22,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:05:22 BoogieIcfgContainer [2020-10-28 10:05:22,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:05:22,644 INFO L168 Benchmark]: Toolchain (without parser) took 35925.00 ms. Allocated memory was 151.0 MB in the beginning and 803.2 MB in the end (delta: 652.2 MB). Free memory was 124.4 MB in the beginning and 456.6 MB in the end (delta: -332.2 MB). Peak memory consumption was 320.9 MB. Max. memory is 8.0 GB. [2020-10-28 10:05:22,645 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:05:22,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.60 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 129.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:05:22,647 INFO L168 Benchmark]: Boogie Preprocessor took 111.34 ms. Allocated memory is still 151.0 MB. Free memory was 129.7 MB in the beginning and 125.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:05:22,647 INFO L168 Benchmark]: RCFGBuilder took 1649.31 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 102.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. [2020-10-28 10:05:22,648 INFO L168 Benchmark]: TraceAbstraction took 33363.84 ms. Allocated memory was 151.0 MB in the beginning and 803.2 MB in the end (delta: 652.2 MB). Free memory was 102.1 MB in the beginning and 456.6 MB in the end (delta: -354.5 MB). Peak memory consumption was 298.3 MB. Max. memory is 8.0 GB. [2020-10-28 10:05:22,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 785.60 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 129.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.34 ms. Allocated memory is still 151.0 MB. Free memory was 129.7 MB in the beginning and 125.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1649.31 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 102.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 33363.84 ms. Allocated memory was 151.0 MB in the beginning and 803.2 MB in the end (delta: 652.2 MB). Free memory was 102.1 MB in the beginning and 456.6 MB in the end (delta: -354.5 MB). Peak memory consumption was 298.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((!(\old(a17) == 1) || 14 == a8) || a16 == 6) || a16 <= 4) || !(a21 == 1)) || a8 == 15) || !(15 == \old(a8)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.6s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 183 SDtfs, 1720 SDslu, 131 SDs, 0 SdLazy, 4649 SolverSat, 582 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1796occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 298 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 129 PreInvPairs, 171 NumberOfFragments, 315 HoareAnnotationTreeSize, 129 FomulaSimplifications, 52588 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2367 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.1s InterpolantComputationTime, 1116 NumberOfCodeBlocks, 1116 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1109 ConstructedInterpolants, 0 QuantifiedInterpolants, 628150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 140/146 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...