/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=NARROWEST --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 -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:50:04,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:50:04,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:50:04,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:50:04,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:50:04,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:50:04,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:50:04,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:50:04,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:50:04,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:50:04,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:50:04,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:50:04,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:50:04,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:50:04,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:50:04,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:50:04,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:50:04,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:50:04,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:50:04,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:50:04,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:50:04,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:50:04,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:50:04,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:50:04,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:50:04,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:50:04,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:50:04,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:50:04,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:50:04,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:50:04,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:50:04,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:50:04,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:50:04,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:50:04,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:50:04,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:50:04,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:50:04,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:50:04,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:50:04,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:50:04,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:50:04,255 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 [2020-10-13 10:50:04,295 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:50:04,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:50:04,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:50:04,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:50:04,298 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:50:04,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:50:04,299 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:50:04,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:50:04,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:50:04,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:50:04,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:50:04,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:50:04,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:50:04,301 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:50:04,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:50:04,302 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:50:04,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:50:04,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:50:04,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:50:04,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:50:04,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:50:04,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:50:04,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:50:04,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:50:04,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:50:04,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:50:04,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:50:04,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:50:04,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:50:04,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:50:04,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:50:04,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:50:04,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:50:04,638 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:50:04,639 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:50:04,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-10-13 10:50:04,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51c178d3e/2e9d7640a5624615a014cc69c1e954cf/FLAG83a5d3272 [2020-10-13 10:50:05,271 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:50:05,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-10-13 10:50:05,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51c178d3e/2e9d7640a5624615a014cc69c1e954cf/FLAG83a5d3272 [2020-10-13 10:50:05,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51c178d3e/2e9d7640a5624615a014cc69c1e954cf [2020-10-13 10:50:05,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:50:05,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:50:05,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:50:05,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:50:05,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:50:05,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:50:05" (1/1) ... [2020-10-13 10:50:05,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718a405b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:05, skipping insertion in model container [2020-10-13 10:50:05,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:50:05" (1/1) ... [2020-10-13 10:50:05,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:50:05,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:50:06,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:50:06,195 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:50:06,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:50:06,605 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:50:06,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06 WrapperNode [2020-10-13 10:50:06,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:50:06,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:50:06,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:50:06,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:50:06,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (1/1) ... [2020-10-13 10:50:06,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (1/1) ... [2020-10-13 10:50:06,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (1/1) ... [2020-10-13 10:50:06,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (1/1) ... [2020-10-13 10:50:06,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (1/1) ... [2020-10-13 10:50:06,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (1/1) ... [2020-10-13 10:50:06,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (1/1) ... [2020-10-13 10:50:06,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:50:06,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:50:06,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:50:06,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:50:06,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (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 [2020-10-13 10:50:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:50:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:50:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 10:50:06,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:50:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:50:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:50:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 10:50:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 10:50:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:50:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:50:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:50:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:50:08,352 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:50:08,352 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 10:50:08,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:50:08 BoogieIcfgContainer [2020-10-13 10:50:08,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:50:08,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:50:08,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:50:08,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:50:08,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:50:05" (1/3) ... [2020-10-13 10:50:08,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e70fe8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:50:08, skipping insertion in model container [2020-10-13 10:50:08,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:06" (2/3) ... [2020-10-13 10:50:08,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e70fe8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:50:08, skipping insertion in model container [2020-10-13 10:50:08,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:50:08" (3/3) ... [2020-10-13 10:50:08,370 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2020-10-13 10:50:08,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:50:08,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-13 10:50:08,406 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-13 10:50:08,436 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:50:08,436 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:50:08,437 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:50:08,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:50:08,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:50:08,437 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:50:08,437 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:50:08,438 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:50:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states. [2020-10-13 10:50:08,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-13 10:50:08,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:08,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:08,475 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:08,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:08,481 INFO L82 PathProgramCache]: Analyzing trace with hash -195644071, now seen corresponding path program 1 times [2020-10-13 10:50:08,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:08,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429745797] [2020-10-13 10:50:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:08,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:08,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 10:50:08,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:08,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-13 10:50:08,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:50:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 10:50:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 10:50:08,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:08,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:08,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:08,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:08,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:50:08,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:08,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:08,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:08,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429745797] [2020-10-13 10:50:08,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:08,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:08,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406067962] [2020-10-13 10:50:08,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:08,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:08,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:08,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:08,950 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 5 states. [2020-10-13 10:50:10,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:10,226 INFO L93 Difference]: Finished difference Result 327 states and 589 transitions. [2020-10-13 10:50:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:10,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-13 10:50:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:10,244 INFO L225 Difference]: With dead ends: 327 [2020-10-13 10:50:10,245 INFO L226 Difference]: Without dead ends: 307 [2020-10-13 10:50:10,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:10,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-13 10:50:10,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 302. [2020-10-13 10:50:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-13 10:50:10,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 425 transitions. [2020-10-13 10:50:10,317 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 425 transitions. Word has length 11 [2020-10-13 10:50:10,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:10,318 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 425 transitions. [2020-10-13 10:50:10,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:10,318 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 425 transitions. [2020-10-13 10:50:10,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-13 10:50:10,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:10,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:10,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:50:10,320 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:10,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:10,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1769995836, now seen corresponding path program 1 times [2020-10-13 10:50:10,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:10,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327236941] [2020-10-13 10:50:10,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:10,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:10,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:10,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:10,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 10:50:10,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:10,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-13 10:50:10,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:50:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 10:50:10,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:50:10,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:10,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:10,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:10,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:10,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:10,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:50:10,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:10,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:10,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:10,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:10,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 10:50:10,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:10,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327236941] [2020-10-13 10:50:10,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:10,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:10,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046411556] [2020-10-13 10:50:10,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:10,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:10,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:10,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:10,597 INFO L87 Difference]: Start difference. First operand 302 states and 425 transitions. Second operand 5 states. [2020-10-13 10:50:11,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:11,578 INFO L93 Difference]: Finished difference Result 312 states and 435 transitions. [2020-10-13 10:50:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:11,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-13 10:50:11,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:11,586 INFO L225 Difference]: With dead ends: 312 [2020-10-13 10:50:11,586 INFO L226 Difference]: Without dead ends: 304 [2020-10-13 10:50:11,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:11,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-13 10:50:11,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 297. [2020-10-13 10:50:11,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-13 10:50:11,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 360 transitions. [2020-10-13 10:50:11,635 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 360 transitions. Word has length 12 [2020-10-13 10:50:11,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:11,636 INFO L479 AbstractCegarLoop]: Abstraction has 297 states and 360 transitions. [2020-10-13 10:50:11,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 360 transitions. [2020-10-13 10:50:11,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-13 10:50:11,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:11,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:11,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:50:11,639 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:11,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:11,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1753745839, now seen corresponding path program 1 times [2020-10-13 10:50:11,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:11,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755095613] [2020-10-13 10:50:11,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:11,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:11,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 10:50:11,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 10:50:11,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:50:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:11,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:11,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:11,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:11,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:11,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:50:11,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:11,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755095613] [2020-10-13 10:50:11,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:11,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:11,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703188101] [2020-10-13 10:50:11,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:11,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:11,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:11,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:11,791 INFO L87 Difference]: Start difference. First operand 297 states and 360 transitions. Second operand 5 states. [2020-10-13 10:50:12,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:12,605 INFO L93 Difference]: Finished difference Result 297 states and 360 transitions. [2020-10-13 10:50:12,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:12,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-13 10:50:12,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:12,608 INFO L225 Difference]: With dead ends: 297 [2020-10-13 10:50:12,608 INFO L226 Difference]: Without dead ends: 295 [2020-10-13 10:50:12,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:12,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-13 10:50:12,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2020-10-13 10:50:12,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-13 10:50:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 358 transitions. [2020-10-13 10:50:12,623 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 358 transitions. Word has length 12 [2020-10-13 10:50:12,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:12,623 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 358 transitions. [2020-10-13 10:50:12,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 358 transitions. [2020-10-13 10:50:12,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-13 10:50:12,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:12,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:12,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:50:12,625 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:12,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:12,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1468456928, now seen corresponding path program 1 times [2020-10-13 10:50:12,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:12,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219511010] [2020-10-13 10:50:12,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:12,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:12,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:12,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:50:12,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:12,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 10:50:12,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:12,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:12,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:50:12,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:50:12,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:12,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:12,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:12,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:12,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:12,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:12,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:50:12,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:12,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:12,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:12,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:12,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:12,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219511010] [2020-10-13 10:50:12,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:12,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:12,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639713559] [2020-10-13 10:50:12,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:12,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:12,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:12,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:12,721 INFO L87 Difference]: Start difference. First operand 295 states and 358 transitions. Second operand 5 states. [2020-10-13 10:50:13,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:13,512 INFO L93 Difference]: Finished difference Result 300 states and 363 transitions. [2020-10-13 10:50:13,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:13,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-13 10:50:13,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:13,515 INFO L225 Difference]: With dead ends: 300 [2020-10-13 10:50:13,515 INFO L226 Difference]: Without dead ends: 298 [2020-10-13 10:50:13,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:13,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-13 10:50:13,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-13 10:50:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-13 10:50:13,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 361 transitions. [2020-10-13 10:50:13,527 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 361 transitions. Word has length 13 [2020-10-13 10:50:13,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:13,528 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 361 transitions. [2020-10-13 10:50:13,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:13,528 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 361 transitions. [2020-10-13 10:50:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-13 10:50:13,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:13,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:13,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:50:13,529 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:13,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:13,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1857035516, now seen corresponding path program 1 times [2020-10-13 10:50:13,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:13,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748546974] [2020-10-13 10:50:13,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:13,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:13,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:13,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:13,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:50:13,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:13,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-13 10:50:13,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:13,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:13,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 10:50:13,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:13,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:13,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:13,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:13,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:13,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:13,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:13,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:13,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:13,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:13,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:13,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748546974] [2020-10-13 10:50:13,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:13,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:13,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554959606] [2020-10-13 10:50:13,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:13,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:13,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:13,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:13,713 INFO L87 Difference]: Start difference. First operand 298 states and 361 transitions. Second operand 6 states. [2020-10-13 10:50:14,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:14,670 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2020-10-13 10:50:14,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:14,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-13 10:50:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:14,674 INFO L225 Difference]: With dead ends: 298 [2020-10-13 10:50:14,674 INFO L226 Difference]: Without dead ends: 296 [2020-10-13 10:50:14,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-13 10:50:14,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-10-13 10:50:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-13 10:50:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 359 transitions. [2020-10-13 10:50:14,686 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 359 transitions. Word has length 15 [2020-10-13 10:50:14,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:14,686 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 359 transitions. [2020-10-13 10:50:14,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:14,687 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 359 transitions. [2020-10-13 10:50:14,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-13 10:50:14,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:14,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:14,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:50:14,688 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:14,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:14,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1733523043, now seen corresponding path program 1 times [2020-10-13 10:50:14,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:14,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76860067] [2020-10-13 10:50:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:14,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:14,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 10:50:14,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:50:14,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-13 10:50:14,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:14,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 10:50:14,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:50:14,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:14,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:14,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:14,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:14,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:14,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:14,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:14,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76860067] [2020-10-13 10:50:14,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:14,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:14,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863311218] [2020-10-13 10:50:14,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:14,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:14,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:14,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:14,874 INFO L87 Difference]: Start difference. First operand 296 states and 359 transitions. Second operand 5 states. [2020-10-13 10:50:15,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:15,609 INFO L93 Difference]: Finished difference Result 296 states and 359 transitions. [2020-10-13 10:50:15,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:15,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-13 10:50:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:15,613 INFO L225 Difference]: With dead ends: 296 [2020-10-13 10:50:15,613 INFO L226 Difference]: Without dead ends: 292 [2020-10-13 10:50:15,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:15,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-10-13 10:50:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-10-13 10:50:15,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-13 10:50:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 355 transitions. [2020-10-13 10:50:15,626 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 355 transitions. Word has length 16 [2020-10-13 10:50:15,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:15,626 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 355 transitions. [2020-10-13 10:50:15,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:15,627 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 355 transitions. [2020-10-13 10:50:15,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-13 10:50:15,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:15,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:15,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:50:15,628 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:15,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:15,629 INFO L82 PathProgramCache]: Analyzing trace with hash 2108628565, now seen corresponding path program 1 times [2020-10-13 10:50:15,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:15,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624653041] [2020-10-13 10:50:15,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:15,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:15,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 10:50:15,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 10:50:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 10:50:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:50:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:15,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:15,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:15,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:15,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:15,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:15,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:15,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:15,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624653041] [2020-10-13 10:50:15,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:15,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:15,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971095500] [2020-10-13 10:50:15,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:15,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:15,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:15,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:15,830 INFO L87 Difference]: Start difference. First operand 292 states and 355 transitions. Second operand 7 states. [2020-10-13 10:50:16,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:16,749 INFO L93 Difference]: Finished difference Result 309 states and 374 transitions. [2020-10-13 10:50:16,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:50:16,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-13 10:50:16,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:16,752 INFO L225 Difference]: With dead ends: 309 [2020-10-13 10:50:16,752 INFO L226 Difference]: Without dead ends: 307 [2020-10-13 10:50:16,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:50:16,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-13 10:50:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 290. [2020-10-13 10:50:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:50:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2020-10-13 10:50:16,765 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 17 [2020-10-13 10:50:16,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:16,766 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2020-10-13 10:50:16,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2020-10-13 10:50:16,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-13 10:50:16,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:16,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:16,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 10:50:16,771 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:16,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:16,772 INFO L82 PathProgramCache]: Analyzing trace with hash 2110167765, now seen corresponding path program 1 times [2020-10-13 10:50:16,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:16,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087226531] [2020-10-13 10:50:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:16,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:16,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:16,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:16,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 10:50:16,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-13 10:50:16,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 10:50:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:50:16,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:16,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:16,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:16,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:16,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:16,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:16,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:16,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:16,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:16,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:16,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:16,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:16,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2087226531] [2020-10-13 10:50:16,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:16,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:16,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792557003] [2020-10-13 10:50:16,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:16,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:16,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:16,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:16,985 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 7 states. [2020-10-13 10:50:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:17,851 INFO L93 Difference]: Finished difference Result 290 states and 353 transitions. [2020-10-13 10:50:17,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:50:17,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-13 10:50:17,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:17,858 INFO L225 Difference]: With dead ends: 290 [2020-10-13 10:50:17,858 INFO L226 Difference]: Without dead ends: 288 [2020-10-13 10:50:17,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:50:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-13 10:50:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2020-10-13 10:50:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-13 10:50:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 351 transitions. [2020-10-13 10:50:17,867 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 351 transitions. Word has length 17 [2020-10-13 10:50:17,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:17,868 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 351 transitions. [2020-10-13 10:50:17,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 351 transitions. [2020-10-13 10:50:17,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-13 10:50:17,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:17,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:17,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 10:50:17,869 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:17,870 INFO L82 PathProgramCache]: Analyzing trace with hash -288578257, now seen corresponding path program 1 times [2020-10-13 10:50:17,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:17,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838743713] [2020-10-13 10:50:17,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:17,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:17,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:17,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 10:50:17,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:17,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 10:50:17,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:17,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:17,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:50:17,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 10:50:17,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:18,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:18,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:18,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:18,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:18,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:18,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:18,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:18,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838743713] [2020-10-13 10:50:18,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:18,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:18,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469834123] [2020-10-13 10:50:18,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:18,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:18,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:18,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:18,051 INFO L87 Difference]: Start difference. First operand 288 states and 351 transitions. Second operand 7 states. [2020-10-13 10:50:18,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:18,959 INFO L93 Difference]: Finished difference Result 288 states and 351 transitions. [2020-10-13 10:50:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:50:18,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-13 10:50:18,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:18,963 INFO L225 Difference]: With dead ends: 288 [2020-10-13 10:50:18,963 INFO L226 Difference]: Without dead ends: 286 [2020-10-13 10:50:18,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:50:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-13 10:50:18,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-10-13 10:50:18,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-13 10:50:18,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2020-10-13 10:50:18,972 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 17 [2020-10-13 10:50:18,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:18,972 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2020-10-13 10:50:18,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2020-10-13 10:50:18,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-13 10:50:18,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:18,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:18,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 10:50:18,974 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:18,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:18,974 INFO L82 PathProgramCache]: Analyzing trace with hash 944344620, now seen corresponding path program 1 times [2020-10-13 10:50:18,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:18,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761798764] [2020-10-13 10:50:18,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:18,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:19,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:19,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 10:50:19,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:19,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 10:50:19,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:19,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:19,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 10:50:19,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:50:19,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:19,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:19,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:19,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:19,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:19,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:19,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:19,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:19,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:19,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761798764] [2020-10-13 10:50:19,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:19,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:19,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535388214] [2020-10-13 10:50:19,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:19,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:19,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:19,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:19,143 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand 6 states. [2020-10-13 10:50:20,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:20,015 INFO L93 Difference]: Finished difference Result 303 states and 368 transitions. [2020-10-13 10:50:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:20,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-13 10:50:20,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:20,018 INFO L225 Difference]: With dead ends: 303 [2020-10-13 10:50:20,019 INFO L226 Difference]: Without dead ends: 301 [2020-10-13 10:50:20,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:20,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-13 10:50:20,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 281. [2020-10-13 10:50:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-13 10:50:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 344 transitions. [2020-10-13 10:50:20,031 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 344 transitions. Word has length 18 [2020-10-13 10:50:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:20,032 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 344 transitions. [2020-10-13 10:50:20,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 344 transitions. [2020-10-13 10:50:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-13 10:50:20,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:20,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:20,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 10:50:20,034 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:20,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:20,034 INFO L82 PathProgramCache]: Analyzing trace with hash 942979200, now seen corresponding path program 1 times [2020-10-13 10:50:20,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:20,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636585589] [2020-10-13 10:50:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:20,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:20,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 10:50:20,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:20,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-13 10:50:20,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:50:20,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:50:20,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:20,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:20,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:20,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:20,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:50:20,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:20,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:20,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:20,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636585589] [2020-10-13 10:50:20,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:20,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:20,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223313150] [2020-10-13 10:50:20,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:20,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:20,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:20,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:20,248 INFO L87 Difference]: Start difference. First operand 281 states and 344 transitions. Second operand 7 states. [2020-10-13 10:50:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:21,381 INFO L93 Difference]: Finished difference Result 295 states and 360 transitions. [2020-10-13 10:50:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 10:50:21,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-13 10:50:21,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:21,384 INFO L225 Difference]: With dead ends: 295 [2020-10-13 10:50:21,384 INFO L226 Difference]: Without dead ends: 293 [2020-10-13 10:50:21,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-13 10:50:21,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-13 10:50:21,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 279. [2020-10-13 10:50:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-10-13 10:50:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 342 transitions. [2020-10-13 10:50:21,393 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 342 transitions. Word has length 18 [2020-10-13 10:50:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:21,393 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 342 transitions. [2020-10-13 10:50:21,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:21,393 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 342 transitions. [2020-10-13 10:50:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-13 10:50:21,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:21,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:21,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 10:50:21,394 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:21,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:21,395 INFO L82 PathProgramCache]: Analyzing trace with hash 990694450, now seen corresponding path program 1 times [2020-10-13 10:50:21,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:21,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819670468] [2020-10-13 10:50:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:21,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:21,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:21,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:21,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 10:50:21,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:21,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 10:50:21,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:21,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:21,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:50:21,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:50:21,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:21,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:21,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:21,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:21,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:21,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:21,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:21,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:21,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:21,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:21,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:21,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:21,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819670468] [2020-10-13 10:50:21,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:21,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:21,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884146186] [2020-10-13 10:50:21,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:21,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:21,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:21,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:21,581 INFO L87 Difference]: Start difference. First operand 279 states and 342 transitions. Second operand 7 states. [2020-10-13 10:50:22,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:22,595 INFO L93 Difference]: Finished difference Result 279 states and 342 transitions. [2020-10-13 10:50:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:50:22,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-13 10:50:22,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:22,598 INFO L225 Difference]: With dead ends: 279 [2020-10-13 10:50:22,598 INFO L226 Difference]: Without dead ends: 275 [2020-10-13 10:50:22,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:50:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-13 10:50:22,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-10-13 10:50:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-13 10:50:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 338 transitions. [2020-10-13 10:50:22,609 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 338 transitions. Word has length 18 [2020-10-13 10:50:22,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:22,612 INFO L479 AbstractCegarLoop]: Abstraction has 275 states and 338 transitions. [2020-10-13 10:50:22,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 338 transitions. [2020-10-13 10:50:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-13 10:50:22,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:22,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:22,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 10:50:22,617 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:22,618 INFO L82 PathProgramCache]: Analyzing trace with hash -790084696, now seen corresponding path program 1 times [2020-10-13 10:50:22,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:22,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784017847] [2020-10-13 10:50:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:22,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:22,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:22,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:22,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:50:22,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:22,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 10:50:22,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:22,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:50:22,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 10:50:22,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:22,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:22,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:22,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:22,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:22,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:22,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:22,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:22,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:22,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:22,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:22,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:22,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784017847] [2020-10-13 10:50:22,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:22,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:22,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225799861] [2020-10-13 10:50:22,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:22,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:22,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:22,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:22,894 INFO L87 Difference]: Start difference. First operand 275 states and 338 transitions. Second operand 7 states. [2020-10-13 10:50:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:23,959 INFO L93 Difference]: Finished difference Result 290 states and 355 transitions. [2020-10-13 10:50:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 10:50:23,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-13 10:50:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:23,963 INFO L225 Difference]: With dead ends: 290 [2020-10-13 10:50:23,963 INFO L226 Difference]: Without dead ends: 288 [2020-10-13 10:50:23,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-13 10:50:23,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-13 10:50:23,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 273. [2020-10-13 10:50:23,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-10-13 10:50:23,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 336 transitions. [2020-10-13 10:50:23,972 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 336 transitions. Word has length 19 [2020-10-13 10:50:23,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:23,973 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 336 transitions. [2020-10-13 10:50:23,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:23,973 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 336 transitions. [2020-10-13 10:50:23,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 10:50:23,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:23,974 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] [2020-10-13 10:50:23,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 10:50:23,974 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:23,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:23,975 INFO L82 PathProgramCache]: Analyzing trace with hash -34991037, now seen corresponding path program 1 times [2020-10-13 10:50:23,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:23,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613855596] [2020-10-13 10:50:23,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:23,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:24,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:50:24,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:50:24,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-13 10:50:24,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 10:50:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:24,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:24,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:24,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:24,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:24,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:24,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:24,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:24,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:24,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:24,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:24,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613855596] [2020-10-13 10:50:24,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:24,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:24,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584203714] [2020-10-13 10:50:24,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:24,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:24,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:24,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:24,318 INFO L87 Difference]: Start difference. First operand 273 states and 336 transitions. Second operand 7 states. [2020-10-13 10:50:25,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:25,150 INFO L93 Difference]: Finished difference Result 276 states and 339 transitions. [2020-10-13 10:50:25,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:50:25,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-13 10:50:25,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:25,153 INFO L225 Difference]: With dead ends: 276 [2020-10-13 10:50:25,153 INFO L226 Difference]: Without dead ends: 274 [2020-10-13 10:50:25,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:50:25,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-13 10:50:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 271. [2020-10-13 10:50:25,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 10:50:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 334 transitions. [2020-10-13 10:50:25,201 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 334 transitions. Word has length 20 [2020-10-13 10:50:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:25,201 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 334 transitions. [2020-10-13 10:50:25,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 334 transitions. [2020-10-13 10:50:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 10:50:25,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:25,202 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] [2020-10-13 10:50:25,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 10:50:25,203 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:25,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:25,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1084719007, now seen corresponding path program 1 times [2020-10-13 10:50:25,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:25,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965793792] [2020-10-13 10:50:25,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:25,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:25,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:25,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:25,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:25,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:25,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 10:50:25,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:50:25,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-13 10:50:25,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 10:50:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:50:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:25,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:25,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:25,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:25,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:25,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:25,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:25,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:25,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:25,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:25,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:25,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:25,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965793792] [2020-10-13 10:50:25,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:25,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:25,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459599152] [2020-10-13 10:50:25,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:25,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:25,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:25,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:25,573 INFO L87 Difference]: Start difference. First operand 271 states and 334 transitions. Second operand 5 states. [2020-10-13 10:50:26,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:26,291 INFO L93 Difference]: Finished difference Result 274 states and 337 transitions. [2020-10-13 10:50:26,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:26,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-13 10:50:26,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:26,294 INFO L225 Difference]: With dead ends: 274 [2020-10-13 10:50:26,294 INFO L226 Difference]: Without dead ends: 254 [2020-10-13 10:50:26,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-13 10:50:26,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-13 10:50:26,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-13 10:50:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 254 transitions. [2020-10-13 10:50:26,302 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 254 transitions. Word has length 21 [2020-10-13 10:50:26,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:26,302 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 254 transitions. [2020-10-13 10:50:26,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 254 transitions. [2020-10-13 10:50:26,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-13 10:50:26,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:26,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:26,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 10:50:26,308 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:26,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:26,309 INFO L82 PathProgramCache]: Analyzing trace with hash 122088100, now seen corresponding path program 1 times [2020-10-13 10:50:26,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:26,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630103453] [2020-10-13 10:50:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:26,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:28,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:29,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:31,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:31,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-13 10:50:31,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:50:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-13 10:50:31,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 10:50:31,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-10-13 10:50:31,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 10:50:31,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:32,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:32,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:32,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:32,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:32,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:32,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:32,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:32,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:32,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:32,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:32,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630103453] [2020-10-13 10:50:32,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:32,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-13 10:50:32,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888276985] [2020-10-13 10:50:32,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 10:50:32,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:32,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 10:50:32,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=427, Unknown=0, NotChecked=0, Total=756 [2020-10-13 10:50:32,100 INFO L87 Difference]: Start difference. First operand 254 states and 254 transitions. Second operand 28 states. [2020-10-13 10:50:33,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:33,856 INFO L93 Difference]: Finished difference Result 255 states and 255 transitions. [2020-10-13 10:50:33,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 10:50:33,857 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 248 [2020-10-13 10:50:33,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:33,860 INFO L225 Difference]: With dead ends: 255 [2020-10-13 10:50:33,860 INFO L226 Difference]: Without dead ends: 253 [2020-10-13 10:50:33,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=977, Invalid=1675, Unknown=0, NotChecked=0, Total=2652 [2020-10-13 10:50:33,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-13 10:50:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 252. [2020-10-13 10:50:33,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-13 10:50:33,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 252 transitions. [2020-10-13 10:50:33,867 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 252 transitions. Word has length 248 [2020-10-13 10:50:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:33,868 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 252 transitions. [2020-10-13 10:50:33,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 10:50:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 252 transitions. [2020-10-13 10:50:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 10:50:33,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:33,872 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:33,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 10:50:33,872 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:33,873 INFO L82 PathProgramCache]: Analyzing trace with hash -510231941, now seen corresponding path program 1 times [2020-10-13 10:50:33,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:33,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754602125] [2020-10-13 10:50:33,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:34,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:44,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:44,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-13 10:50:44,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:44,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10093 [2020-10-13 10:50:44,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 121 [2020-10-13 10:50:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:50:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-13 10:50:44,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:46,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:46,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:46,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:46,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:46,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:46,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:46,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:46,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:46,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:46,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:46,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:46,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754602125] [2020-10-13 10:50:46,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:46,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:46,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807966658] [2020-10-13 10:50:46,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:46,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:46,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:46,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:46,842 INFO L87 Difference]: Start difference. First operand 252 states and 252 transitions. Second operand 7 states. [2020-10-13 10:50:47,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:47,638 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2020-10-13 10:50:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:50:47,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2020-10-13 10:50:47,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:47,639 INFO L225 Difference]: With dead ends: 254 [2020-10-13 10:50:47,639 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 10:50:47,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 22 SyntacticMatches, 97 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:50:47,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 10:50:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 10:50:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 10:50:47,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 10:50:47,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 249 [2020-10-13 10:50:47,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:47,644 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 10:50:47,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:47,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 10:50:47,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 10:50:47,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 10:50:47,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 10:50:47,902 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:50:47,902 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_3904_1~0 |old(~__tmp_3904_1~0)|) (= ~__tmp_2609_0~0 |old(~__tmp_2609_0~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__tmp_3904_0~0 |old(~__tmp_3904_0~0)|) (= ~__return_2598~0 |old(~__return_2598~0)|)) [2020-10-13 10:50:47,902 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:50:47,902 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:50:47,903 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 10:50:47,903 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 10:50:47,903 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:50:47,903 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:50:47,903 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-13 10:50:47,903 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:50:47,903 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:50:47,903 INFO L268 CegarLoopResult]: For program point L1951(lines 1951 2742) no Hoare annotation was computed. [2020-10-13 10:50:47,903 INFO L268 CegarLoopResult]: For program point L828(lines 828 2915) no Hoare annotation was computed. [2020-10-13 10:50:47,904 INFO L268 CegarLoopResult]: For program point L762(lines 762 2925) no Hoare annotation was computed. [2020-10-13 10:50:47,904 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 3006) no Hoare annotation was computed. [2020-10-13 10:50:47,904 INFO L268 CegarLoopResult]: For program point L2612(lines 2612 2641) no Hoare annotation was computed. [2020-10-13 10:50:47,904 INFO L268 CegarLoopResult]: For program point L2216(lines 2216 2701) no Hoare annotation was computed. [2020-10-13 10:50:47,904 INFO L268 CegarLoopResult]: For program point L1093(lines 1093 2874) no Hoare annotation was computed. [2020-10-13 10:50:47,904 INFO L268 CegarLoopResult]: For program point L1358(lines 1358 2833) no Hoare annotation was computed. [2020-10-13 10:50:47,904 INFO L268 CegarLoopResult]: For program point L2349(lines 2349 2681) no Hoare annotation was computed. [2020-10-13 10:50:47,904 INFO L268 CegarLoopResult]: For program point L2283(lines 2283 2691) no Hoare annotation was computed. [2020-10-13 10:50:47,905 INFO L268 CegarLoopResult]: For program point L169(lines 169 191) no Hoare annotation was computed. [2020-10-13 10:50:47,905 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 10:50:47,905 INFO L268 CegarLoopResult]: For program point L2614(line 2614) no Hoare annotation was computed. [2020-10-13 10:50:47,905 INFO L268 CegarLoopResult]: For program point L500(lines 500 2965) no Hoare annotation was computed. [2020-10-13 10:50:47,905 INFO L268 CegarLoopResult]: For program point L1491(lines 1491 2813) no Hoare annotation was computed. [2020-10-13 10:50:47,905 INFO L268 CegarLoopResult]: For program point L1425(lines 1425 2823) no Hoare annotation was computed. [2020-10-13 10:50:47,905 INFO L268 CegarLoopResult]: For program point L1756(lines 1756 2772) no Hoare annotation was computed. [2020-10-13 10:50:47,905 INFO L268 CegarLoopResult]: For program point L633(lines 633 2945) no Hoare annotation was computed. [2020-10-13 10:50:47,906 INFO L268 CegarLoopResult]: For program point L567(lines 567 2955) no Hoare annotation was computed. [2020-10-13 10:50:47,906 INFO L268 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-13 10:50:47,906 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 171) no Hoare annotation was computed. [2020-10-13 10:50:47,906 INFO L268 CegarLoopResult]: For program point L2021(lines 2021 2731) no Hoare annotation was computed. [2020-10-13 10:50:47,906 INFO L268 CegarLoopResult]: For program point L898(lines 898 2904) no Hoare annotation was computed. [2020-10-13 10:50:47,906 INFO L268 CegarLoopResult]: For program point L1163(lines 1163 2863) no Hoare annotation was computed. [2020-10-13 10:50:47,906 INFO L268 CegarLoopResult]: For program point L2154(lines 2154 2711) no Hoare annotation was computed. [2020-10-13 10:50:47,906 INFO L268 CegarLoopResult]: For program point L2088(lines 2088 2721) no Hoare annotation was computed. [2020-10-13 10:50:47,907 INFO L268 CegarLoopResult]: For program point L2419(lines 2419 2670) no Hoare annotation was computed. [2020-10-13 10:50:47,907 INFO L268 CegarLoopResult]: For program point L305(lines 305 2995) no Hoare annotation was computed. [2020-10-13 10:50:47,907 INFO L268 CegarLoopResult]: For program point L1296(lines 1296 2843) no Hoare annotation was computed. [2020-10-13 10:50:47,907 INFO L268 CegarLoopResult]: For program point L1230(lines 1230 2853) no Hoare annotation was computed. [2020-10-13 10:50:47,907 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2020-10-13 10:50:47,907 INFO L268 CegarLoopResult]: For program point L1561(lines 1561 2802) no Hoare annotation was computed. [2020-10-13 10:50:47,907 INFO L268 CegarLoopResult]: For program point L438(lines 438 2975) no Hoare annotation was computed. [2020-10-13 10:50:47,907 INFO L268 CegarLoopResult]: For program point L372(lines 372 2985) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L1826(lines 1826 2761) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L703(lines 703 2934) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L43(lines 43 53) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L968(lines 968 2893) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L1959(lines 1959 2741) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L1893(lines 1893 2751) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L2224(lines 2224 2700) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L1101(lines 1101 2873) no Hoare annotation was computed. [2020-10-13 10:50:47,908 INFO L268 CegarLoopResult]: For program point L1035(lines 1035 2883) no Hoare annotation was computed. [2020-10-13 10:50:47,909 INFO L268 CegarLoopResult]: For program point L2621(lines 2621 2640) no Hoare annotation was computed. [2020-10-13 10:50:47,909 INFO L268 CegarLoopResult]: For program point L2489(lines 2489 2659) no Hoare annotation was computed. [2020-10-13 10:50:47,909 INFO L268 CegarLoopResult]: For program point L1366(lines 1366 2832) no Hoare annotation was computed. [2020-10-13 10:50:47,909 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-13 10:50:47,909 INFO L268 CegarLoopResult]: For program point L1631(lines 1631 2791) no Hoare annotation was computed. [2020-10-13 10:50:47,909 INFO L268 CegarLoopResult]: For program point L2556(lines 2556 2649) no Hoare annotation was computed. [2020-10-13 10:50:47,909 INFO L268 CegarLoopResult]: For program point L508(lines 508 2964) no Hoare annotation was computed. [2020-10-13 10:50:47,909 INFO L268 CegarLoopResult]: For program point L244(lines 244 279) no Hoare annotation was computed. [2020-10-13 10:50:47,910 INFO L268 CegarLoopResult]: For program point L773(lines 773 2923) no Hoare annotation was computed. [2020-10-13 10:50:47,910 INFO L268 CegarLoopResult]: For program point L1764(lines 1764 2771) no Hoare annotation was computed. [2020-10-13 10:50:47,910 INFO L268 CegarLoopResult]: For program point L1698(lines 1698 2781) no Hoare annotation was computed. [2020-10-13 10:50:47,910 INFO L264 CegarLoopResult]: At program point L2623(lines 23 3000) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2020-10-13 10:50:47,910 INFO L268 CegarLoopResult]: For program point L113(lines 113 121) no Hoare annotation was computed. [2020-10-13 10:50:47,910 INFO L268 CegarLoopResult]: For program point L2029(lines 2029 2730) no Hoare annotation was computed. [2020-10-13 10:50:47,910 INFO L268 CegarLoopResult]: For program point L906(lines 906 2903) no Hoare annotation was computed. [2020-10-13 10:50:47,910 INFO L268 CegarLoopResult]: For program point L840(lines 840 2913) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L2294(lines 2294 2689) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L1171(lines 1171 2862) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L1436(lines 1436 2821) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L2427(lines 2427 2669) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L313(lines 313 2994) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L2361(lines 2361 2679) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L181(lines 181 189) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 10:50:47,911 INFO L268 CegarLoopResult]: For program point L578(lines 578 2953) no Hoare annotation was computed. [2020-10-13 10:50:47,912 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-10-13 10:50:47,912 INFO L268 CegarLoopResult]: For program point L1569(lines 1569 2801) no Hoare annotation was computed. [2020-10-13 10:50:47,912 INFO L268 CegarLoopResult]: For program point L1503(lines 1503 2811) no Hoare annotation was computed. [2020-10-13 10:50:47,912 INFO L268 CegarLoopResult]: For program point L1834(lines 1834 2760) no Hoare annotation was computed. [2020-10-13 10:50:47,912 INFO L268 CegarLoopResult]: For program point L711(lines 711 2933) no Hoare annotation was computed. [2020-10-13 10:50:47,912 INFO L268 CegarLoopResult]: For program point L645(lines 645 2943) no Hoare annotation was computed. [2020-10-13 10:50:47,912 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-13 10:50:47,912 INFO L268 CegarLoopResult]: For program point L2099(lines 2099 2719) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point L976(lines 976 2892) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point L1241(lines 1241 2851) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point L2232(lines 2232 2699) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point L2166(lines 2166 2709) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point L2629(lines 2629 2639) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point L2497(lines 2497 2658) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point L383(lines 383 2983) no Hoare annotation was computed. [2020-10-13 10:50:47,913 INFO L268 CegarLoopResult]: For program point L1374(lines 1374 2831) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point L1308(lines 1308 2841) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point L251(lines 251 273) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 2602) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point L1639(lines 1639 2790) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point L516(lines 516 2963) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point L450(lines 450 2973) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point L1904(lines 1904 2749) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point L781(lines 781 2922) no Hoare annotation was computed. [2020-10-13 10:50:47,914 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-10-13 10:50:47,915 INFO L268 CegarLoopResult]: For program point L1046(lines 1046 2881) no Hoare annotation was computed. [2020-10-13 10:50:47,915 INFO L268 CegarLoopResult]: For program point L2037(lines 2037 2729) no Hoare annotation was computed. [2020-10-13 10:50:47,915 INFO L268 CegarLoopResult]: For program point L1971(lines 1971 2739) no Hoare annotation was computed. [2020-10-13 10:50:47,916 INFO L264 CegarLoopResult]: At program point L2632(lines 62 2999) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (<= 0 main_~main__t~0)) [2020-10-13 10:50:47,916 INFO L268 CegarLoopResult]: For program point L2302(lines 2302 2688) no Hoare annotation was computed. [2020-10-13 10:50:47,917 INFO L268 CegarLoopResult]: For program point L1179(lines 1179 2861) no Hoare annotation was computed. [2020-10-13 10:50:47,917 INFO L268 CegarLoopResult]: For program point L1113(lines 1113 2871) no Hoare annotation was computed. [2020-10-13 10:50:47,917 INFO L268 CegarLoopResult]: For program point L2567(lines 2567 2647) no Hoare annotation was computed. [2020-10-13 10:50:47,917 INFO L268 CegarLoopResult]: For program point L1444(lines 1444 2820) no Hoare annotation was computed. [2020-10-13 10:50:47,917 INFO L268 CegarLoopResult]: For program point L321(lines 321 2993) no Hoare annotation was computed. [2020-10-13 10:50:47,917 INFO L268 CegarLoopResult]: For program point L1709(lines 1709 2779) no Hoare annotation was computed. [2020-10-13 10:50:47,917 INFO L268 CegarLoopResult]: For program point L586(lines 586 2952) no Hoare annotation was computed. [2020-10-13 10:50:47,917 INFO L268 CegarLoopResult]: For program point L851(lines 851 2911) no Hoare annotation was computed. [2020-10-13 10:50:47,918 INFO L268 CegarLoopResult]: For program point L1842(lines 1842 2759) no Hoare annotation was computed. [2020-10-13 10:50:47,918 INFO L268 CegarLoopResult]: For program point L1776(lines 1776 2769) no Hoare annotation was computed. [2020-10-13 10:50:47,918 INFO L268 CegarLoopResult]: For program point L2107(lines 2107 2718) no Hoare annotation was computed. [2020-10-13 10:50:47,918 INFO L268 CegarLoopResult]: For program point L984(lines 984 2891) no Hoare annotation was computed. [2020-10-13 10:50:47,918 INFO L268 CegarLoopResult]: For program point L918(lines 918 2901) no Hoare annotation was computed. [2020-10-13 10:50:47,918 INFO L268 CegarLoopResult]: For program point L2372(lines 2372 2677) no Hoare annotation was computed. [2020-10-13 10:50:47,918 INFO L268 CegarLoopResult]: For program point L1249(lines 1249 2850) no Hoare annotation was computed. [2020-10-13 10:50:47,918 INFO L268 CegarLoopResult]: For program point L1514(lines 1514 2809) no Hoare annotation was computed. [2020-10-13 10:50:47,919 INFO L268 CegarLoopResult]: For program point L2505(lines 2505 2657) no Hoare annotation was computed. [2020-10-13 10:50:47,919 INFO L268 CegarLoopResult]: For program point L391(lines 391 2982) no Hoare annotation was computed. [2020-10-13 10:50:47,919 INFO L268 CegarLoopResult]: For program point L2439(lines 2439 2667) no Hoare annotation was computed. [2020-10-13 10:50:47,919 INFO L268 CegarLoopResult]: For program point L656(lines 656 2941) no Hoare annotation was computed. [2020-10-13 10:50:47,919 INFO L268 CegarLoopResult]: For program point L1647(lines 1647 2789) no Hoare annotation was computed. [2020-10-13 10:50:47,919 INFO L264 CegarLoopResult]: At program point L2638(lines 2589 2645) the Hoare annotation is: (and (<= 22 main_~main__t~0) (<= main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0))) [2020-10-13 10:50:47,919 INFO L268 CegarLoopResult]: For program point L1581(lines 1581 2799) no Hoare annotation was computed. [2020-10-13 10:50:47,919 INFO L268 CegarLoopResult]: For program point L62(lines 62 2999) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L1912(lines 1912 2748) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 115) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L789(lines 789 2921) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L723(lines 723 2931) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L2177(lines 2177 2707) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L1054(lines 1054 2880) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L1319(lines 1319 2839) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L2310(lines 2310 2687) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L2244(lines 2244 2697) no Hoare annotation was computed. [2020-10-13 10:50:47,920 INFO L268 CegarLoopResult]: For program point L130(lines 130 280) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point L2575(lines 2575 2646) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point L461(lines 461 2971) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point L1452(lines 1452 2819) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point L1386(lines 1386 2829) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point L263(lines 263 271) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point L1717(lines 1717 2778) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point L594(lines 594 2951) no Hoare annotation was computed. [2020-10-13 10:50:47,921 INFO L268 CegarLoopResult]: For program point L528(lines 528 2961) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L1982(lines 1982 2737) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L859(lines 859 2910) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L265(line 265) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L1124(lines 1124 2869) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L2115(lines 2115 2717) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L2049(lines 2049 2727) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L2380(lines 2380 2676) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L1257(lines 1257 2849) no Hoare annotation was computed. [2020-10-13 10:50:47,922 INFO L268 CegarLoopResult]: For program point L1191(lines 1191 2859) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L134(lines 134 238) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L1522(lines 1522 2808) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L399(lines 399 2981) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L333(lines 333 2991) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L1787(lines 1787 2767) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L664(lines 664 2940) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L929(lines 929 2899) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L1920(lines 1920 2747) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point L1854(lines 1854 2757) no Hoare annotation was computed. [2020-10-13 10:50:47,923 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 3006) no Hoare annotation was computed. [2020-10-13 10:50:47,924 INFO L268 CegarLoopResult]: For program point L203(lines 203 227) no Hoare annotation was computed. [2020-10-13 10:50:47,924 INFO L268 CegarLoopResult]: For program point L2185(lines 2185 2706) no Hoare annotation was computed. [2020-10-13 10:50:47,924 INFO L268 CegarLoopResult]: For program point L1062(lines 1062 2879) no Hoare annotation was computed. [2020-10-13 10:50:47,924 INFO L268 CegarLoopResult]: For program point L996(lines 996 2889) no Hoare annotation was computed. [2020-10-13 10:50:47,924 INFO L268 CegarLoopResult]: For program point L2450(lines 2450 2665) no Hoare annotation was computed. [2020-10-13 10:50:47,924 INFO L268 CegarLoopResult]: For program point L1327(lines 1327 2838) no Hoare annotation was computed. [2020-10-13 10:50:47,924 INFO L268 CegarLoopResult]: For program point L72(lines 72 284) no Hoare annotation was computed. [2020-10-13 10:50:47,924 INFO L268 CegarLoopResult]: For program point L1592(lines 1592 2797) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L2583(lines 2583 2645) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L469(lines 469 2970) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L2517(lines 2517 2655) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L734(lines 734 2929) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L1725(lines 1725 2777) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L1659(lines 1659 2787) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-13 10:50:47,925 INFO L268 CegarLoopResult]: For program point L1990(lines 1990 2736) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point L867(lines 867 2909) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point L801(lines 801 2919) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point L2255(lines 2255 2695) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point L141(lines 141 232) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 183) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point L1132(lines 1132 2868) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point L1397(lines 1397 2827) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point L2388(lines 2388 2675) no Hoare annotation was computed. [2020-10-13 10:50:47,926 INFO L268 CegarLoopResult]: For program point L2322(lines 2322 2685) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point L539(lines 539 2959) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point L1530(lines 1530 2807) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point L1464(lines 1464 2817) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point L1795(lines 1795 2766) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point L672(lines 672 2939) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point L606(lines 606 2949) no Hoare annotation was computed. [2020-10-13 10:50:47,927 INFO L268 CegarLoopResult]: For program point L2060(lines 2060 2725) no Hoare annotation was computed. [2020-10-13 10:50:47,928 INFO L268 CegarLoopResult]: For program point L937(lines 937 2898) no Hoare annotation was computed. [2020-10-13 10:50:47,928 INFO L268 CegarLoopResult]: For program point L1202(lines 1202 2857) no Hoare annotation was computed. [2020-10-13 10:50:47,928 INFO L268 CegarLoopResult]: For program point L2193(lines 2193 2705) no Hoare annotation was computed. [2020-10-13 10:50:47,928 INFO L268 CegarLoopResult]: For program point L2127(lines 2127 2715) no Hoare annotation was computed. [2020-10-13 10:50:47,928 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-10-13 10:50:47,928 INFO L268 CegarLoopResult]: For program point L2458(lines 2458 2664) no Hoare annotation was computed. [2020-10-13 10:50:47,928 INFO L268 CegarLoopResult]: For program point L344(lines 344 2989) no Hoare annotation was computed. [2020-10-13 10:50:47,928 INFO L268 CegarLoopResult]: For program point L1335(lines 1335 2837) no Hoare annotation was computed. [2020-10-13 10:50:47,929 INFO L264 CegarLoopResult]: At program point L278(lines 130 280) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~3) (<= 1 main_~main__t~0) (= main_~__VERIFIER_assert__cond~2 1) (<= main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0))) [2020-10-13 10:50:47,929 INFO L268 CegarLoopResult]: For program point L1269(lines 1269 2847) no Hoare annotation was computed. [2020-10-13 10:50:47,929 INFO L268 CegarLoopResult]: For program point L1600(lines 1600 2796) no Hoare annotation was computed. [2020-10-13 10:50:47,929 INFO L268 CegarLoopResult]: For program point L477(lines 477 2969) no Hoare annotation was computed. [2020-10-13 10:50:47,929 INFO L268 CegarLoopResult]: For program point L411(lines 411 2979) no Hoare annotation was computed. [2020-10-13 10:50:47,929 INFO L268 CegarLoopResult]: For program point L1865(lines 1865 2755) no Hoare annotation was computed. [2020-10-13 10:50:47,929 INFO L268 CegarLoopResult]: For program point L742(lines 742 2928) no Hoare annotation was computed. [2020-10-13 10:50:47,929 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L1007(lines 1007 2887) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L1998(lines 1998 2735) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L1932(lines 1932 2745) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L215(lines 215 225) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L2263(lines 2263 2694) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L1140(lines 1140 2867) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L1074(lines 1074 2877) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L2528(lines 2528 2653) no Hoare annotation was computed. [2020-10-13 10:50:47,930 INFO L268 CegarLoopResult]: For program point L1405(lines 1405 2826) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L84(lines 84 282) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L1670(lines 1670 2785) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L547(lines 547 2958) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L217(line 217) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L19(lines 19 3005) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L812(lines 812 2917) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L1803(lines 1803 2765) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L1737(lines 1737 2775) no Hoare annotation was computed. [2020-10-13 10:50:47,931 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-13 10:50:47,932 INFO L268 CegarLoopResult]: For program point L2068(lines 2068 2724) no Hoare annotation was computed. [2020-10-13 10:50:47,932 INFO L268 CegarLoopResult]: For program point L945(lines 945 2897) no Hoare annotation was computed. [2020-10-13 10:50:47,932 INFO L268 CegarLoopResult]: For program point L879(lines 879 2907) no Hoare annotation was computed. [2020-10-13 10:50:47,933 INFO L268 CegarLoopResult]: For program point L2333(lines 2333 2683) no Hoare annotation was computed. [2020-10-13 10:50:47,933 INFO L268 CegarLoopResult]: For program point L1210(lines 1210 2856) no Hoare annotation was computed. [2020-10-13 10:50:47,933 INFO L268 CegarLoopResult]: For program point L153(lines 153 230) no Hoare annotation was computed. [2020-10-13 10:50:47,933 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 265) no Hoare annotation was computed. [2020-10-13 10:50:47,933 INFO L268 CegarLoopResult]: For program point L1475(lines 1475 2815) no Hoare annotation was computed. [2020-10-13 10:50:47,933 INFO L268 CegarLoopResult]: For program point L2466(lines 2466 2663) no Hoare annotation was computed. [2020-10-13 10:50:47,933 INFO L268 CegarLoopResult]: For program point L2400(lines 2400 2673) no Hoare annotation was computed. [2020-10-13 10:50:47,934 INFO L268 CegarLoopResult]: For program point L352(lines 352 2988) no Hoare annotation was computed. [2020-10-13 10:50:47,934 INFO L268 CegarLoopResult]: For program point L617(lines 617 2947) no Hoare annotation was computed. [2020-10-13 10:50:47,934 INFO L268 CegarLoopResult]: For program point L1608(lines 1608 2795) no Hoare annotation was computed. [2020-10-13 10:50:47,936 INFO L268 CegarLoopResult]: For program point L1542(lines 1542 2805) no Hoare annotation was computed. [2020-10-13 10:50:47,936 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point L23(lines 23 3000) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point L1873(lines 1873 2754) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point L750(lines 750 2927) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 2614) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point L684(lines 684 2937) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point L2600(lines 2600 2643) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point L2138(lines 2138 2713) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point L1015(lines 1015 2886) no Hoare annotation was computed. [2020-10-13 10:50:47,937 INFO L268 CegarLoopResult]: For program point L1280(lines 1280 2845) no Hoare annotation was computed. [2020-10-13 10:50:47,938 INFO L268 CegarLoopResult]: For program point L2271(lines 2271 2693) no Hoare annotation was computed. [2020-10-13 10:50:47,938 INFO L268 CegarLoopResult]: For program point L2205(lines 2205 2703) no Hoare annotation was computed. [2020-10-13 10:50:47,938 INFO L268 CegarLoopResult]: For program point L2602(line 2602) no Hoare annotation was computed. [2020-10-13 10:50:47,938 INFO L268 CegarLoopResult]: For program point L2536(lines 2536 2652) no Hoare annotation was computed. [2020-10-13 10:50:47,938 INFO L268 CegarLoopResult]: For program point L422(lines 422 2977) no Hoare annotation was computed. [2020-10-13 10:50:47,938 INFO L268 CegarLoopResult]: For program point L1413(lines 1413 2825) no Hoare annotation was computed. [2020-10-13 10:50:47,938 INFO L268 CegarLoopResult]: For program point L1347(lines 1347 2835) no Hoare annotation was computed. [2020-10-13 10:50:47,938 INFO L264 CegarLoopResult]: At program point L224(lines 90 282) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~3) (<= 1 main_~main__t~0) (= main_~__VERIFIER_assert__cond~2 1) (<= main_~main__t~0 main_~main__tagbuf_len~0)) [2020-10-13 10:50:47,938 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point L1678(lines 1678 2784) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point L555(lines 555 2957) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point L489(lines 489 2967) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point L1943(lines 1943 2743) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point L820(lines 820 2916) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point L1085(lines 1085 2875) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point L2076(lines 2076 2723) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point L2010(lines 2010 2733) no Hoare annotation was computed. [2020-10-13 10:50:47,939 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-10-13 10:50:47,940 INFO L268 CegarLoopResult]: For program point L2341(lines 2341 2682) no Hoare annotation was computed. [2020-10-13 10:50:47,940 INFO L268 CegarLoopResult]: For program point L1218(lines 1218 2855) no Hoare annotation was computed. [2020-10-13 10:50:47,940 INFO L268 CegarLoopResult]: For program point L1152(lines 1152 2865) no Hoare annotation was computed. [2020-10-13 10:50:47,940 INFO L268 CegarLoopResult]: For program point L1483(lines 1483 2814) no Hoare annotation was computed. [2020-10-13 10:50:47,940 INFO L268 CegarLoopResult]: For program point L360(lines 360 2987) no Hoare annotation was computed. [2020-10-13 10:50:47,940 INFO L268 CegarLoopResult]: For program point L294(lines 294 2997) no Hoare annotation was computed. [2020-10-13 10:50:47,940 INFO L268 CegarLoopResult]: For program point L162(lines 162 229) no Hoare annotation was computed. [2020-10-13 10:50:47,940 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 3006) the Hoare annotation is: (and (= |old(~__tmp_3904_0~0)| ~__tmp_3904_0~0) (= |old(~__return_2598~0)| ~__return_2598~0) (= |old(~__tmp_3904_1~0)| ~__tmp_3904_1~0) (= |old(~__tmp_2609_0~0)| ~__tmp_2609_0~0)) [2020-10-13 10:50:47,941 INFO L268 CegarLoopResult]: For program point L1748(lines 1748 2773) no Hoare annotation was computed. [2020-10-13 10:50:47,941 INFO L268 CegarLoopResult]: For program point L625(lines 625 2946) no Hoare annotation was computed. [2020-10-13 10:50:47,941 INFO L268 CegarLoopResult]: For program point L31(lines 31 55) no Hoare annotation was computed. [2020-10-13 10:50:47,941 INFO L264 CegarLoopResult]: At program point L3004(lines 19 3005) the Hoare annotation is: (or (and (= |old(~__tmp_3904_0~0)| ~__tmp_3904_0~0) (= |old(~__return_2598~0)| ~__return_2598~0) (= |old(~__tmp_3904_1~0)| ~__tmp_3904_1~0) (= |old(~__tmp_2609_0~0)| ~__tmp_2609_0~0)) (<= 0 main_~main__t~0)) [2020-10-13 10:50:47,943 INFO L268 CegarLoopResult]: For program point L890(lines 890 2905) no Hoare annotation was computed. [2020-10-13 10:50:47,943 INFO L268 CegarLoopResult]: For program point L1881(lines 1881 2753) no Hoare annotation was computed. [2020-10-13 10:50:47,943 INFO L268 CegarLoopResult]: For program point L1815(lines 1815 2763) no Hoare annotation was computed. [2020-10-13 10:50:47,943 INFO L268 CegarLoopResult]: For program point L2146(lines 2146 2712) no Hoare annotation was computed. [2020-10-13 10:50:47,943 INFO L268 CegarLoopResult]: For program point L1023(lines 1023 2885) no Hoare annotation was computed. [2020-10-13 10:50:47,943 INFO L268 CegarLoopResult]: For program point L957(lines 957 2895) no Hoare annotation was computed. [2020-10-13 10:50:47,943 INFO L268 CegarLoopResult]: For program point L2411(lines 2411 2671) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L1288(lines 1288 2844) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L1553(lines 1553 2803) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L2544(lines 2544 2651) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L2478(lines 2478 2661) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L430(lines 430 2976) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L695(lines 695 2935) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L1686(lines 1686 2783) no Hoare annotation was computed. [2020-10-13 10:50:47,944 INFO L268 CegarLoopResult]: For program point L1620(lines 1620 2793) no Hoare annotation was computed. [2020-10-13 10:50:47,945 INFO L268 CegarLoopResult]: For program point L101(lines 101 123) no Hoare annotation was computed. [2020-10-13 10:50:47,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:50:47 BoogieIcfgContainer [2020-10-13 10:50:47,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:50:47,991 INFO L168 Benchmark]: Toolchain (without parser) took 42419.04 ms. Allocated memory was 145.8 MB in the beginning and 892.3 MB in the end (delta: 746.6 MB). Free memory was 100.6 MB in the beginning and 229.5 MB in the end (delta: -128.8 MB). Peak memory consumption was 617.8 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:47,995 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:50:47,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1042.00 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 100.4 MB in the beginning and 167.1 MB in the end (delta: -66.7 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:47,996 INFO L168 Benchmark]: Boogie Preprocessor took 178.67 ms. Allocated memory is still 205.0 MB. Free memory was 167.1 MB in the beginning and 162.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:47,998 INFO L168 Benchmark]: RCFGBuilder took 1572.88 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 161.9 MB in the beginning and 109.2 MB in the end (delta: 52.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:47,999 INFO L168 Benchmark]: TraceAbstraction took 39619.68 ms. Allocated memory was 237.0 MB in the beginning and 892.3 MB in the end (delta: 655.4 MB). Free memory was 109.2 MB in the beginning and 229.5 MB in the end (delta: -120.3 MB). Peak memory consumption was 535.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:48,005 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1042.00 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 100.4 MB in the beginning and 167.1 MB in the end (delta: -66.7 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.67 ms. Allocated memory is still 205.0 MB. Free memory was 167.1 MB in the beginning and 162.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1572.88 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 161.9 MB in the beginning and 109.2 MB in the end (delta: 52.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39619.68 ms. Allocated memory was 237.0 MB in the beginning and 892.3 MB in the end (delta: 655.4 MB). Free memory was 109.2 MB in the beginning and 229.5 MB in the end (delta: -120.3 MB). Peak memory consumption was 535.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2614]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 171]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 265]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 183]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 205]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2602]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 217]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 74]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 115]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 86]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 45]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (((1 <= __VERIFIER_assert__cond && 1 <= main__t) && __VERIFIER_assert__cond == 1) && main__t <= main__tagbuf_len) && !(main__tagbuf_len == main__t) - InvariantResult [Line: 2589]: Loop Invariant Derived loop invariant: (22 <= main__t && main__t <= main__tagbuf_len) && !(main__tagbuf_len == main__t) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (main__t <= main__tagbuf_len && !(main__tagbuf_len == main__t)) && 0 <= main__t - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((\old(__tmp_3904_0) == __tmp_3904_0 && \old(__return_2598) == __return_2598) && \old(__tmp_3904_1) == __tmp_3904_1) && \old(__tmp_2609_0) == __tmp_2609_0) || 0 <= main__t - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: ((1 <= __VERIFIER_assert__cond && 1 <= main__t) && __VERIFIER_assert__cond == 1) && main__t <= main__tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 313 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.2s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2501 SDtfs, 13710 SDslu, 726 SDs, 0 SdLazy, 13434 SolverSat, 3579 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 353 GetRequests, 83 SyntacticMatches, 99 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=309occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 85 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 107 HoareAnnotationTreeSize, 10 FomulaSimplifications, 1335 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 136 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 21.1s InterpolantComputationTime, 741 NumberOfCodeBlocks, 741 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 724 ConstructedInterpolants, 0 QuantifiedInterpolants, 755366 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...